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                                                                  EXHIBIT 4.6   



                    PREFERRED SECURITIES GUARANTEE AGREEMENT


                                 BY AND BETWEEN


                  CAPITOL BANCORP LTD., A MICHIGAN CORPORATION


                                      AND


                       THE FIRST NATIONAL BANK OF CHICAGO



   
                       DATED AS OF   December 18, 1997
    







_____________________________________________________________________________
                               TABLE OF CONTENTS



     ARTICLE I
           DEFINITIONS AND INTERPRETATION

     Section 1.1. Definitions and Interpretation

     ARTICLE II
           TRUST INDENTURE ACT

     Section 2.1.  Trust Indenture Act; Application
     Section 2.2.  Lists of Holders of Securities

     Section 2.3.  Reports by Preferred Guarantee Trustee

     Section 2.4.  Periodic Reports to Preferred Guarantee Trustee

     Section 2.5.  Evidence of Compliance with Conditions Precedent

     Section 2.6.  Events of Default; Waiver

     Section 2.7.  Event of Default; Notice

     Section 2.8.  Conflicting Interests




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     ARTICLE III
           POWERS, DUTIES AND RIGHTS OF PREFERRED GUARANTEE TRUSTEE

     Section 3.1.  Powers and Duties of Preferred Guarantee Trustee

     Section 3.2.  Certain Rights of Preferred Guarantee Trustee

     Section 3.3.  Not Responsible for Recitals or Issuance of Guarantee


      ARTICLE IV
           PREFERRED GUARANTEE TRUSTEE

     Section 4.1.  Preferred Guarantee Trustee; Eligibility

     Section 4.2.  Appointment, Removal and Resignation of Preferred
                   Guarantee Trustee

     ARTICLE V
          GUARANTEE
     Section 5.1.  Guarantee

     Section 5.2.  Waiver of Notice and Demand

     Section 5.3.  Obligations not Affected

     Section 5.4.  Rights of Holders

     Section 5.5.  Guarantee of Payment.

     Section 5.6.  Subrogation.

     Section 5.7.  Independent Obligations

     ARTICLE VI
           LIMITATION OF TRANSACTIONS; SUBORDINATION    

     Section 6.1.  Limitation of Transactions

     Section 6.2.  Ranking

     ARTICLE VII
           TERMINATION
     Section 7.1.  Termination

     ARTICLE VIII
           INDEMNIFICATION
     Section 8.1.  Exculpation

     Section 8.2.  Indemnification

     ARTICLE IX
           MISCELLANEOUS
     Section 9.1.  Successors and Assigns

     Section 9.2.  Amendments

     Section 9.3.  Notices



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     Section 9.4.  Benefit

     Section 9.5.  Governing Law



                             CROSS REFERENCE TABLE

     Section of Trust                     Section of
     Indenture Act of                     Guarantee
     1939 as amended                      Agreement
     ----------------                     ----------

          310(a)                            4.1(a)
          310(b)                            4.1(c), 2.8
          310(c)                            Not Applicable
          311(a)                            2.2(b)
          311(b)                            2.2(b)
          311(c)                            Not Applicable
          312(a)                            2.2(a)
          312(b)                            2.2(b)
          313                               2.3
          314(a)                            2.4
          314(b)                            Not Applicable
          314(c)                            2.5
          314(d)                            Not Applicable
          314(e)                            1.1, 2.5, 3.2
          314(f)                            2.1, 3.2
          315(a)                            3.1(d)
          315(b)                            2.7
          315(c)                            3.1
          315(d)                            3.1(d)
          316(a)                            1.1, 2.6, 5.4
          316(b)                            5.3
          317(a)                            3.1
          317(b)                            Not Applicable
          318(a)                            2.1(a)
          318(b)                            2.1
          318(c)                            2.1(b)

          Note: This Cross-Reference Table does not constitute part of this
          Agreement and shall not affect the interpretation of any of its
          terms or provisions.




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                    PREFERRED SECURITIES GUARANTEE AGREEMENT

   
THIS PREFERRED SECURITIES GUARANTEE AGREEMENT (this "Preferred Securities
Guarantee"), dated as of December 18, 1997 is executed and delivered by
CAPITOL BANCORP LTD., a Michigan corporation, (the "Guarantor"), and  THE FIRST
NATIONAL BANK OF CHICAGO, a national banking association, as trustee (the
"Preferred Guarantee Trustee"), for the benefit of the Holders (as defined
herein) from time to time of the Preferred Securities (as defined herein) of
CAPITOL TRUST I, a Delaware statutory business trust (the "Trust").
    



                                    RECITALS

   
     WHEREAS, pursuant to an Amended and Restated Trust Agreement (the "Trust   
Agreement"), dated as of  December 18, 1997, among the trustees of the Trust
named therein, the Guarantor, as depositor, and the holders from time to time
of undivided beneficial interests in the assets of the Trust, the Trust is
issuing on the date hereof up to 2,530,000 preferred securities, having an
aggregate liquidation amount of $25,300,000, designated the 8.50% Cumulative
Trust Preferred Securities (the "Preferred Securities");
    

     WHEREAS, as an incentive for the Holders to purchase the Preferred
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth in this Preferred Securities Guarantee, to pay to the
Holders of the Preferred Securities the Guarantee Payments (as defined herein)
and to make certain other payments on the terms and conditions set forth
herein.

     NOW, THEREFORE, in consideration of the purchase by each Holder of
Preferred Securities, which purchase the Guarantor hereby agrees shall benefit
the Guarantor, the Guarantor executes and delivers this Preferred Securities
Guarantee for the benefit of the Holders.

                                   ARTICLE I
                         DEFINITIONS AND INTERPRETATION

SECTION 1.1. DEFINITIONS AND INTERPRETATION.

     In this Preferred Securities Guarantee, unless the context otherwise
requires:

     (a) capitalized terms used in this Preferred Securities Guarantee but not
defined in the preamble above have the respective meanings assigned to them in
this Section 1.1;

     (b) terms defined in the Trust Agreement as at the date of execution of
this Preferred Securities Guarantee have the same meaning when used in this
Preferred Securities Guarantee;

     (c) a term defined anywhere in this Preferred Securities Guarantee has the
same meaning throughout;




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     (d) all references to "the Preferred Securities Guarantee" or "this
Preferred Securities Guarantee" are to this Preferred Securities Guarantee as
modified, supplemented or amended from time to time;

     (e) all references in this Preferred Securities Guarantee to Articles and
Sections are to Articles and Sections of this Preferred Securities Guarantee,
unless otherwise specified;

     (f) a term defined in the Trust Indenture Act has the same meaning when
used in this Preferred Securities Guarantee, unless otherwise defined in this
Preferred Securities Guarantee or unless the context otherwise requires; and

     (g) a reference to the singular includes the plural and vice versa.

     "Affiliate" has the same meaning as given to that term in Rule 405 of the
Securities Act of 1933, as amended, or any successor rule thereunder.

     "Business Day" means any day other than a day on which federal or state
banking institutions in New York, New York are authorized or required by law,
executive order or regulation to close or a day on which the Corporate Trust
Office of the Preferred Guarantee Trustee is closed for business.

     "Corporate Trust Office" means the office of the Preferred Guarantee
Trustee at which the corporate trust business of the Preferred Guarantee
Trustee shall, at any particular time, be principally administered, which
office at the date of execution of this Preferred Securities Guarantee is
located at One First National Plaza, Ste. 0126, Chicago, Illinois, 60670-0126.

     "Covered Person" means any Holder or beneficial owner of
Preferred Securities.

   
     "Debentures" means the 8.50% Subordinated Debentures due December 31, 
2027, of the Debenture Issuer held by the Property Trustee of the Trust.
    

     "Debenture Issuer" means the Guarantor.

     "Event of Default" means a default by the Guarantor on any of its payment
or other obligations under this Preferred Securities Guarantee.

     "Guarantor" means Capitol Bancorp Ltd., a Michigan corporation

     "Guarantee Payments" means the following payments or distributions,
without duplication, with respect to the Preferred Securities, to the extent
not paid or made by the Trust:  (i) any accrued and unpaid Distributions that
are required to be paid on such Preferred Securities, to the extent the Trust
shall have funds available therefor, (ii) the redemption price, including all
accrued and unpaid Distributions to the date of redemption (the "Redemption
Price"), to the extent the Trust has funds available therefor, with respect to
any Preferred Securities called for redemption by the Trust, and (iii) upon a
voluntary or involuntary dissolution, winding-up or termination of the Trust
(other than in connection with the distribution of Debentures to the Holders in
exchange for Preferred Securities as provided in the Trust Agreement), the
lesser of (a) the aggregate of the Liquidation Amount and all accrued and
unpaid Distributions on the Preferred Securities to the date of payment, to the
extent the Trust shall have funds available therefor (the 



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"Liquidation Distribution"), and (b) the amount of assets of the Trust
remaining available for distribution to Holders in liquidation of the Trust.
        
     "Holder" shall mean any holder, as registered on the books and records of
the Trust, of any Preferred Securities; provided, however, that, in determining
whether the holders of the requisite percentage of Preferred Securities have
given any request, notice, consent or waiver hereunder,"Holder" shall not
include the Guarantor or any Affiliate of the Guarantor. "Indemnified Person"
means the Preferred Guarantee Trustee, any Affiliate of the Preferred Guarantee
Trustee, or any officers, directors, shareholders, members, partners,
employees, representatives, nominees, custodians or agents of the Preferred
Guarantee Trustee.

   
     "Indemnified Person" means the Preferred Guarantee Trustee (as hereafter
defined) and its offers, employees, successor and assigns.
    

   
     "Indenture" means the Indenture dated as of December 18, 1997 among the
Debenture Issuer and The First National Bank of Chicago, as trustee, and any
indenture supplemental thereto pursuant to, which ----% Subordinated Debentures
of the Debenture Issuer are to be issued to the Property Trustee of the Trust.
    

     "Liquidation Distribution" has the meaning provided therefor in the
definition of Guarantee Payments.

     "List of Holders" has the meaning set forth in Section 2.2 of this
Preferred Securities Guarantee.

     "Majority in Liquidation Amount of the Preferred Securities" means the
holders of more than 50% of the Liquidation Amount (including the stated amount
that would be paid on redemption, liquidation or otherwise, plus accrued and
unpaid Distributions to the date upon which the voting percentages are
determined) of all of the Preferred Securities.

   
     "Officer's Certificate" means, with respect to any Person, a certificate
signed by an authorized officer  of such Person.  Any Officer's Certificate
delivered with respect to compliance with a condition or covenant provided for
in this Preferred Securities Guarantee shall include:
    

   
     (a) a statement that each officer signing the Officer's Certificate has
read the covenant or condition and the definition relating thereto;
    

   
     (b) a brief statement of the nature and scope of the examination or
investigation undertaken by each officer in rendering the Officer's Certificate;
    

   
     (c) a statement that each such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such
officer to express an informed opinion as to whether or not such covenant or
condition has been complied with; and
    

     (d) a statement as to whether, in the opinion of each such officer, such
condition or covenant has been complied with.

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever
nature.



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     "Preferred Guarantee Trustee" means The First National Bank of Chicago
Company, until a Successor Preferred Guarantee Trustee has been appointed and
has accepted such appointment pursuant to the terms of this Preferred
Securities Guarantee and thereafter means each such Successor
Preferred Guarantee Trustee.

     "Redemption Price" has the meaning provided therefor in the definition of
Guarantee Payments.

     "Responsible Officer" means, with respect to the Preferred Guarantee
Trustee, any officer within the Corporate Trust Office of the Preferred
Guarantee Trustee, including any vice-president, any assistant vice-president,
any assistant secretary, the treasurer, any assistant treasurer or other
officer of the Corporate Trust Office of the Preferred Guarantee Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of that
officer's knowledge of and familiarity with the particular subject.

     "Successor Preferred Guarantee Trustee" means a successor Preferred
Guarantee Trustee possessing the qualifications to act as Preferred Guarantee
Trustee under Section 4.1.

     "Trust Indenture Act" means the Trust Indenture Act of 1939,  as amended,
as in force at the date as of which this instrument was executed; provided,
however, that in the event the Trust Indenture Act of 1939, as amended, is
amended after such date, "Trust Indenture Act" means, to the extent required by
any such amendment, the Trust Indenture Act of 1939 as so amended.

                                   ARTICLE II
                              TRUST INDENTURE ACT

SECTION 2.1. TRUST INDENTURE ACT; APPLICATION.

(a)  This Preferred Securities Guarantee is subject to the provisions of the
Trust Indenture Act that are required to be part of this Preferred Securities
Guarantee and shall, to the extent applicable, be governed by such provisions.

(b)  If and to the extent that any provision of this Preferred Securities
Guarantee limits, qualifies or conflicts with the duties imposed by Section 310
to 317, inclusive, of the Trust Indenture Act, such imposed duties shall
control.

SECTION 2.2.   LISTS OF HOLDERS OF SECURITIES.

     (a) In the event the Preferred Guarantee Trustee is not also the
Securities Registrar, the Guarantor shall provide the Preferred Guarantee
Trustee with a list, in such form as the Preferred Guarantee Trustee may
reasonably require, of the names and addresses of the Holders of the Preferred
Securities (the "List of Holders") as of such date, (i) within 1 Business Day
after January 1 and June 30 of each year, and (ii) at any other time within 30
days of receipt by the Guarantor of a written request for a List of Holders as
of a date no more than 15 days before such List of Holders is given to the
Preferred Guarantee Trustee; provided, that the Guarantor 


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shall not be obligated to provide such List of Holders at any time the List of
Holders does not differ from the most recent List of Holders given to the
Preferred Guarantee Trustee by the Guarantor.  The Preferred Guarantee Trustee
may destroy any List of Holders previously given to it on receipt of a new List
of Holders.
        
(b) The Preferred Guarantee Trustee shall comply with its obligations under
Sections 311(a), 311(b) and Section 312(b) of the Trust Indenture Act.

SECTION 2.3. REPORTS BY PREFERRED GUARANTEE TRUSTEE.

     On or before July 15 of each year, the Preferred Guarantee Trustee shall
provide to the Holders of the Preferred Securities such reports as are required
by Section 313 of the Trust Indenture Act, if any, in the form and in the
manner provided by Section 313 of the Trust Indenture Act. The Preferred
Guarantee Trustee shall also comply with the requirements of Section 313(d) of
the Trust Indenture Act.

SECTION 2.4. PERIODIC REPORTS TO PREFERRED GUARANTEE TRUSTEE.

     The Guarantor shall provide to the Preferred Guarantee Trustee such
documents, reports and information as required by Section 314 (if any) and the
compliance certificate required by Section 314 of the Trust Indenture Act in
the form, in the manner and at the times required by Section 314 of the Trust
Indenture Act.

SECTION 2.5. EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

The Guarantor shall provide to the Preferred Guarantee Trustee such evidence of
compliance with any conditions precedent, if any, provided for in this
Preferred Securities Guarantee that relate to any of the matters set forth in
Section 314(c) of the Trust Indenture Act.  Any certificate or opinion required
to be given by an officer pursuant to Section 314(c)(1) may be given in the
form of an Officers' Certificate.

SECTION 2.6. EVENTS OF DEFAULT; WAIVER.

     The Holders of a Majority in liquidation amount of Preferred Securities
may, by vote, on behalf of the Holders of all of the Preferred Securities,
waive any past Event of Default and its consequences.  Upon such waiver, any
such Event of Default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of this
Preferred Securities Guarantee, but no such waiver shall extend to any
subsequent or other default or Event of Default or impair any right consequent
thereon.

SECTION 2.7. EVENT OF DEFAULT; NOTICE.

   
     (a) The Preferred Guarantee Trustee shall, within 90 days after the
occurrence of an Event of Default actually known to a Responsible Officer of
the Preferred Guarantee Trustee, transmit by mail, first class postage
prepaid, to the Holders of the Preferred Securities, notices of all such Events
of Default  unless such defaults have been cured before the giving of such
notice; provided, that the Preferred Guarantee Trustee shall be protected in 
withholding such notice if and so long as a Responsible Officer of the
Preferred Guarantee Trustee in good faith determines that the withholding of
such notice is in the interests of the Holders of the Preferred Securities.
    



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     (b) The Preferred Guarantee Trustee shall not be deemed to have knowledge
of any Event of Default unless the Preferred Guarantee Trustee shall have
received written notice, or of which a Responsible Officer of the Preferred
Guarantee Trustee charged with the administration of the Trust Agreement shall
have obtained actual knowledge.

SECTION 2.8.  CONFLICTING INTERESTS.

     The Trust Agreement shall be deemed to be specifically described in this
Preferred Securities Guarantee for the purposes of clause (i) of the first
proviso contained in Section 310(b) of the Trust Indenture Act.

                                  ARTICLE III
            POWERS, DUTIES AND RIGHTS OF PREFERRED GUARANTEE TRUSTEE

SECTION 3.1. POWERS AND DUTIES OF PREFERRED GUARANTEE TRUSTEE.

     (a) This Preferred Securities Guarantee shall be held by the Preferred
Guarantee Trustee for the benefit of the Holders of the Preferred Securities,
and the Preferred Guarantee Trustee shall not transfer this Preferred
Securities Guarantee to any Person except a Holder of Preferred Securities
exercising his or her rights pursuant to Section 5.4(b) or to a Successor
Preferred Guarantee Trustee on acceptance by such Successor Preferred Guarantee
Trustee of its appointment to act as Successor Preferred Guarantee Trustee.
The right, title and interest of the Preferred Guarantee Trustee shall
automatically vest in any Successor Preferred Guarantee Trustee, and such
vesting and cessation of title shall be effective whether or not conveyancing
documents have been executed and delivered pursuant to the appointment of such
Successor Preferred Guarantee Trustee.

     (b) If an Event of Default actually known to a Responsible Officer of the
Preferred Guarantee Trustee has occurred and is continuing, the Preferred
Guarantee Trustee shall enforce this Preferred Securities Guarantee for the
benefit of the Holders of the Preferred Securities.

     (c) The Preferred Guarantee Trustee, before the occurrence of any Event of
Default and after the curing of all Events of Default that may have occurred,
shall undertake to perform only such duties as are specifically set forth in
this Preferred Securities Guarantee, and no implied covenants shall be read
into this Preferred Securities Guarantee against the Preferred Guarantee
Trustee.  In case an Event of Default has occurred (that has not been cured or
waived pursuant to Section 2.6) and is actually known to a Responsible Officer
of the Preferred Guarantee Trustee, the Preferred Guarantee Trustee shall
exercise such of the rights and powers vested in it by this Preferred
Securities Guarantee, and use the same degree of care and skill in its exercise
thereof, as a prudent person would exercise or use under the circumstances in
the conduct of his or her own affairs.

     (d) No provision of this Preferred Securities Guarantee shall be construed
to relieve the Preferred Guarantee Trustee from liability for its own negligent
action, its own negligent failure to act, or its own willful misconduct, except
that:

           (i) prior to the occurrence of any Event of Default and after the
     curing or waiving of all such Events of Default that may have occurred:




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                (A) the duties and obligations of the Preferred Guarantee 
Trustee shall be determined solely by the express provisions of this Preferred
Securities Guarantee, and the Preferred Guarantee Trustee shall not be liable
except for the performance of such duties and obligations as are specifically
set forth in this Preferred Securities Guarantee, and no implied covenants or
obligations shall be read into this Preferred Securities Guarantee against the
Preferred Guarantee Trustee; and
        
                (B) in the absence of bad faith on the part of the Preferred 
Guarantee Trustee, the Preferred Guarantee Trustee may conclusively rely, as to
the truth of the statements and the correctness of the opinions expressed
therein, upon any certificates or opinions furnished to the Preferred Guarantee
Trustee and conforming to the requirements of this Preferred Securities
Guarantee; but in the case of any such certificates or opinions that by any
provision hereof are specifically required to be furnished to the Preferred
Guarantee Trustee, the Preferred Guarantee Trustee shall be under a duty to
examine the same to determine whether or not they conform to the requirements
of this Preferred Securities Guarantee;
        
        (ii)  the Preferred Guarantee Trustee shall not be liable for any error
of judgment made in good faith by a Responsible Officer of the Preferred
Guarantee Trustee, unless it shall be proved that the Preferred Guarantee
Trustee was negligent in ascertaining the pertinent facts upon which such
judgment was made;
        
        (iii) the Preferred Guarantee Trustee shall not be liable with respect 
to any action taken or omitted to be taken by it in good faith in accordance
with the direction of the Holders of not less than a Majority in liquidation
amount of the Preferred Securities relating to the time, method and place of
conducting any proceeding for any remedy available to the Preferred Guarantee
Trustee, or exercising any trust or power conferred upon the Preferred
Guarantee Trustee under this Preferred Securities Guarantee; and
        
        (iv)  no provision of this Preferred Securities Guarantee shall require
the Preferred Guarantee Trustee to expend or risk its own funds or otherwise
incur personal financial liability in the performance of any of its duties or
in the exercise of any of its rights or powers, if the Preferred Guarantee
Trustee shall have reasonable grounds for believing that the repayment of such
funds or liability is not reasonably assured to it under the terms of this
Preferred Securities Guarantee or indemnity, reasonably satisfactory to the
Preferred Guarantee Trustee, against such risk or liability is not reasonably
assured to it.
        
SECTION 3.2. CERTAIN RIGHTS OF PREFERRED GUARANTEE TRUSTEE.

        (a) Subject to the provisions of Section 3.1:

            (i) the Preferred Guarantee Trustee may conclusively rely, and 
shall be fully protected in acting or refraining from acting upon, any
resolution, certificate, statement, instrument, opinion, report, notice,
request, direction, consent, order, bond, debenture,  note, other evidence of
indebtedness or other paper or document believed by it to be genuine and to
have been signed, sent or presented by the proper party or parties;
        


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             (ii)   any direction or act of the Guarantor contemplated by this 
Preferred Securities Guarantee shall be sufficiently evidenced by an Officers'
Certificate;
        
             (iii)  whenever, in the administration of this Preferred Securities
Guarantee, the Preferred Guarantee Trustee shall deem it desirable that a
matter be proved or established before taking, suffering or omitting any action
hereunder, the Preferred Guarantee Trustee (unless other evidence is herein
specifically prescribed) may, in the absence of bad faith on its part, request
and conclusively rely upon an Officers' Certificate which, upon receipt of such
request, shall be promptly delivered by the Guarantor;

             (iv)   the Preferred Guarantee Trustee shall have no duty to see 
to any recording, filing or registration of any instrument (or any rerecording,
refiling or registration thereof);
        
             (v)    the Preferred Guarantee Trustee may consult with counsel, 
and the written advice or opinion of such counsel with respect to legal
matters shall be full and complete authorization and protection in respect of
any action taken, suffered or omitted by it hereunder in good faith and in
accordance with such advice or opinion.  Such counsel may be counsel to the
Guarantor or any of its Affiliates and may include any of its employees.  The
Preferred Guarantee Trustee shall have the right at any time to seek
instructions concerning the administration of this Preferred Securities
Guarantee from any court of competent jurisdiction;
        
             (vi)   the Preferred Guarantee Trustee shall be under no obligation
to exercise any of the rights or powers vested in it by this Preferred
Securities Guarantee at the request or direction of any Holder, unless such
Holder shall have provided to the Preferred Guarantee Trustee such security and
indemnity, reasonably satisfactory to the Preferred Guarantee Trustee, against
the costs, expenses (including attorneys' fees and expenses and the expenses of
the Preferred Guarantee Trustee's agents, nominees or custodians) and
liabilities that might be incurred by it in complying with such request or
direction, including such reasonable advances as may be requested by the
Preferred Guarantee Trustee; provided that, nothing contained in this Section
3.2(a)(vi) shall be taken to relieve the Preferred Guarantee Trustee, upon the
occurrence of an Event of Default, of its obligation to exercise the rights and
powers vested in it by this Preferred Securities Guarantee;
        
             (vii)  the Preferred Guarantee Trustee shall not be bound to make 
any investigation into the facts or matters stated in any resolution,
certificate, statement, instrument, opinion, report, notice, request,
direction, consent, order, bond, debenture, note, other evidence of
indebtedness or other paper or document, but the Preferred Guarantee Trustee,
in its discretion, may make such further inquiry or investigation into such
facts or matters as it may see fit;
        
             (viii) the Preferred Guarantee Trustee may execute any of the 
trusts or powers hereunder or perform any duties hereunder either directly or
by or through agents, nominees, custodians or attorneys, and the Preferred
Guarantee Trustee shall not be responsible for any misconduct or negligence on
the part of any agent or attorney appointed with due care by it hereunder;
        



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                (ix) any action taken by the Preferred Guarantee Trustee or its
agents hereunder shall bind the Holders of the Preferred Securities, and the
signature of the Preferred Guarantee Trustee or its agents alone shall be
sufficient and effective to perform any such action.  No third party shall be
required to inquire as to the authority of the Preferred Guarantee Trustee to
so act or as to its compliance with any of the terms and provisions of this
Preferred Securities Guarantee, both of which shall be conclusively evidenced
by the Preferred Guarantee Trustee's or its agent's taking such action;
        
                (x)  whenever in the administration of this Preferred 
Securities Guarantee the Preferred Guarantee Trustee shall deem it desirable to
receive instructions with respect to enforcing any remedy or right or taking
any other action hereunder, the Preferred Guarantee Trustee (i) may request
instructions from the Holders of a Majority in liquidation amount of the
Preferred Securities, (ii) may refrain from enforcing such remedy or right or
taking such other action until such instructions are received, and (iii) shall
be protected in conclusively relying on or acting in accordance with such
instructions.
        
           (b)    No provision of this Preferred Securities Guarantee shall be
      deemed to impose any duty or obligation on the Preferred Guarantee
      Trustee to perform any act or acts or exercise any right, power, duty or
      obligation conferred or imposed on it in any jurisdiction in which it
      shall be illegal, or in which the Preferred Guarantee Trustee shall be
      unqualified or incompetent in accordance with applicable law, to perform
      any such act or acts or to exercise any such right, power, duty or
      obligation.  No permissive power or authority available to the Preferred
      Guarantee Trustee shall be construed to be a duty.

SECTION 3.3.   NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE.

      The Recitals contained in this Guarantee shall be taken as the statements
of the Guarantor, and the Preferred Guarantee Trustee does not assume any
responsibility for their correctness.  The Preferred Guarantee Trustee makes no
representation as to the validity or sufficiency of this Preferred Securities
Guarantee.

                                   ARTICLE IV
                          PREFERRED GUARANTEE TRUSTEE

SECTION 4.1.   PREFERRED GUARANTEE TRUSTEE; ELIGIBILITY.

           (a) There shall at all times be a Preferred Guarantee Trustee which 
shall:

               (i)  not be an Affiliate of the Guarantor; and

               (ii) be a corporation organized and doing business under the 
laws of the United States of America or any State or Territory thereof or of
the District of Columbia, or a corporation or Person permitted by the
Securities and Exchange Commission to act as an institutional trustee under the
Trust Indenture Act, authorized under such laws to exercise corporate trust
powers, having a combined capital and surplus of at least $50,000,000, and
subject to supervision or examination by Federal, State, Territorial or
District of Columbia authority.  If such corporation publishes reports of
condition at least annually, pursuant to law or to the requirements of the
supervising or examining authority referred to above, then, for the purposes 
        


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of this Section 4.1(a)(ii), the combined capital and surplus of such
corporation shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published.
        
        (b)   If at any time the Preferred Guarantee Trustee shall cease to be
eligible to so act under Section 4.1(a), the Preferred Guarantee Trustee shall
immediately resign in the manner and with the effect set out in Section 4.2(c).

        (c)   If the Preferred Guarantee Trustee has or shall acquire any
"conflicting interest" within the meaning of Section 310(b) of the Trust
Indenture Act, the Preferred Guarantee Trustee and Guarantor shall in all
respects comply with the provisions of Section 310(b) of the Trust Indenture
Act.

SECTION 4.2.  APPOINTMENT, REMOVAL AND RESIGNATION OF PREFERRED GUARANTEE
              TRUSTEE.

        (a)   Subject to Section 4.2 (b), the Preferred Guarantee Trustee may be
appointed or removed without cause at any time by the Guarantor.

        (b)   The Preferred Guarantee Trustee shall not be removed in accordance
with Section 4.2(a) until a Successor Preferred Guarantee Trustee has been
appointed and has accepted such appointment by written instrument executed by
such Successor Preferred Guarantee Trustee and delivered to the Guarantor.

        (c)   The Preferred Guarantee Trustee appointed to office shall hold 
office until a Successor Preferred Guarantee Trustee shall have been appointed
or until its removal or resignation.  The Preferred Guarantee Trustee may
resign from office (without need for prior or subsequent accounting) by an
instrument in writing executed by the Preferred Guarantee Trustee and delivered
to the Guarantor, which resignation shall not take effect until a Successor
Preferred Guarantee Trustee has been appointed and has accepted such
appointment by instrument in writing executed by such Successor Preferred
Guarantee Trustee and delivered to the Guarantor and the resigning Preferred
Guarantee Trustee.
        
        (d)    If no Successor Preferred Guarantee Trustee shall have been 
appointed and accepted appointment as provided in this Section 4.2 within 60
days after delivery to the Guarantor of an instrument of resignation, the
resigning Preferred Guarantee Trustee may petition any court of competent
jurisdiction for appointment of a Successor Preferred Guarantee Trustee. Such
court may thereupon, after prescribing such notice, if any, as it may deem
proper, appoint a Successor Preferred Guarantee Trustee.
        
        (e)    No Preferred Guarantee Trustee shall be liable for the acts
or omissions to act of any Successor Preferred Guarantee Trustee.

        (f)    Upon termination of this Preferred Securities Guarantee or 
removal or resignation of the Preferred Guarantee Trustee pursuant to this
Section 4.2, the Guarantor shall pay to the Preferred Guarantee Trustee all
amounts accrued to the date of such termination, removal or resignation.
        
                                  ARTICLE V
                                  GUARANTEE



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SECTION 5.1.  GUARANTEE.

     The Guarantor irrevocably and unconditionally agrees to pay in full to the
Holders the Guarantee Payments (without duplication of amounts theretofore paid
by the Trust), as and when due, regardless of any defense, right of set-off or
counterclaim that the Trust may have or assert.  The Guarantor's obligation to
make a Guarantee Payment may be satisfied by direct payment of the required
amounts by the Guarantor to the Holders or by causing the Trust to pay such
amounts to the Holders.

SECTION 5.2.  WAIVER OF NOTICE AND DEMAND.

     The Guarantor hereby waives notice of acceptance of this Preferred
Securities Guarantee and of any liability to which it applies or may apply,
presentment, demand for payment, any right to require a proceeding first
against the Trust or any other Person before proceeding against the Guarantor,
protest, notice of nonpayment, notice of dishonor, notice of redemption and all
other notices and demands.

SECTION 5.3.  OBLIGATIONS NOT AFFECTED.

     The obligations, covenants, agreements and duties of the Guarantor under
this Preferred Securities Guarantee shall in no way be affected or impaired by
reason of the happening from time to time of any of the following:

     (a) the release or waiver, by operation of law or otherwise, of the
performance or observance by the Trust of any express or implied agreement,
covenant, term or condition relating to the Preferred Securities to be
performed or observed by the Trust;

     (b) the extension of time for the payment by the Trust of all or any
portion of the Distributions, Redemption Price, Liquidation Distribution or any
other sums payable under the terms of the Preferred Securities or the extension
of time for the performance of any other obligation under, arising out of, or
in connection with, the Preferred Securities (other than an extension of time
for payment of Distributions, Redemption Price, Liquidation Distribution or
other sum payable that results from the extension of any interest payment
period on the Debentures or any extension of the maturity date of the
Debentures permitted by the Indenture);

     (c) any failure, omission, delay or lack of diligence on the part of the
Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Preferred Securities, or
any action on the part of the Trust granting indulgence or extension of any
kind;

     (d) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust;

     (e) any invalidity of, or defect or deficiency in, the Preferred
Securities;




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     (f) any failure or omission to receive any regulatory approval or consent
required in connection with the Preferred Securities (or the common equity
securities issued by the Trust), including the failure to receive any approval
of the Board of Governors of the Federal Reserve System required for the
redemption of the Preferred Securities;

         (g) the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

         (h) any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 5.3 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

     There shall be no obligation of the Holders to give notice to, or obtain
consent of, the Guarantor with respect to the happening of any of the
foregoing.

SECTION 5.4.  RIGHTS OF HOLDERS.

     (a) The Holders of a Majority in liquidation amount of the Preferred
Securities have the right to direct the time, method and place of conducting of
any proceeding for any remedy available to the Preferred Guarantee Trustee in
respect of this Preferred Securities Guarantee or exercising any trust or power
conferred upon the Preferred Guarantee Trustee under this Preferred Securities
Guarantee.

     (b) Any Holder of Preferred Securities may institute a legal proceeding
directly against the Guarantor to enforce its rights under this Preferred
Securities Guarantee, without first instituting a legal proceeding against the
Trust, the Preferred Guarantee Trustee or any other Person.

SECTION 5.5.  GUARANTEE OF PAYMENT.

     This Preferred Securities Guarantee creates a guarantee of payment and not
of collection.

SECTION 5.6.  SUBROGATION.

     The Guarantor shall be subrogated to all (if any) rights of the Holders of
Preferred Securities against the Trust in respect of any amounts paid to such
Holders by the Guarantor under this Preferred Securities Guarantee; provided,
however, that the Guarantor shall not (except to the extent required by
mandatory provisions of law) be entitled to enforce or exercise any right that
it may acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Preferred Securities
Guarantee, if, at the time of any such payment, any amounts are due and unpaid
under this Preferred Securities Guarantee.  If any amount shall be paid to the
Guarantor in violation of the preceding sentence, the Guarantor agrees to hold
such amount in trust for the Holders and to pay over such amount to the
Holders.

SECTION 5.7.  INDEPENDENT OBLIGATIONS.

     The Guarantor acknowledges that its obligations hereunder are independent
of the obligations of the Trust with respect to the Preferred 


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Securities, and that the Guarantor shall be liable as principal and as debtor
hereunder to make Guarantee Payments pursuant to the terms of this Preferred
Securities Guarantee notwithstanding the occurrence of any event referred to in
subsections (a) through (h), inclusive, of Section 5.3 hereof.
        

                                   ARTICLE VI
                   LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 6.1. LIMITATION OF TRANSACTIONS.

     So long as any Preferred Securities remain outstanding, if there shall
have occurred an Event of Default under this Preferred Securities Guarantee, an
Event of Default under the Trust Agreement or during an Extended Interest
Payment Period (as defined in the Indenture), then (a) the Guarantor shall not
declare or pay any dividends or distributions on, or redeem, purchase, acquire
or make a liquidation payment with respect to, any of its capital stock (other
than (i) dividends or distributions in common stock of the Guarantor or any
declaration of a non-cash dividend in connection with the implementation of a
shareholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto,
and (ii) purchases of common stock of the Guarantor related to the rights under
any of the Guarantor's benefit plans for its directors, officers or employees),
(b) the Guarantor shall not make any payment of principal or interest on or
repay, repurchase or redeem any debt securities issued by the Guarantor which
rank pari passu with or junior to the Debentures and (c) the Guarantor shall
not redeem, purchase or acquire less than all of the Outstanding Debentures or
any of the Preferred Securities.

SECTION 6.2  RANKING.

     This Preferred Securities Guarantee will constitute an unsecured
obligation of the Guarantor and will rank (i) subordinate and junior in right
of payment to all other liabilities of the Guarantor, (ii) pari passu with the
most senior preferred securities or preference stock now or hereafter issued by
the Guarantor and with any guarantee now or hereafter entered into by the
Guarantor in respect of any preferred securities or preference stock of any
Affiliate of the Guarantor, and (iii) senior to the Guarantor's common stock.


                                  ARTICLE VII
                                  TERMINATION

SECTION 7.1.  TERMINATION.

     This Preferred Securities Guarantee shall terminate upon (i) full payment
of the Redemption Price of all Preferred Securities, (ii) full payment of the
amounts payable in accordance with the Trust Agreement upon liquidation of the
Trust, or (iii) distribution of the Debentures to the Holders of the Preferred
Securities.  Notwithstanding the foregoing, this Preferred Securities Guarantee
shall continue to be effective or shall be reinstated, as the case may be, if
at any time any Holder of Preferred Securities must restore payment of any sums
paid under the Preferred Securities or under this Preferred Securities
Guarantee.



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                                  ARTICLE VIII
                                INDEMNIFICATION

SECTION 8.1.  EXCULPATION.

     (a) No Indemnified Person shall be liable, responsible or accountable in
damages or otherwise to the Guarantor or any Covered Person for any loss,
damage or claim incurred by reason of any act or omission performed or omitted
by such Indemnified Person in good faith in accordance with this Preferred
Securities Guarantee and in a manner that such Indemnified Person reasonably
believed to be within the scope of the authority conferred on such Indemnified
Person by this Preferred Securities Guarantee or by law, except that an
Indemnified Person shall be liable for any such loss, damage or claim incurred
by reason of such Indemnified Person's negligence or willful misconduct with
respect to such acts or omissions.

     (b) An Indemnified Person shall be fully protected in relying in good
faith upon the records of the Guarantor and upon such information, opinions,
reports or statements presented to the Guarantor by any Person as to matters
the Indemnified Person reasonably believes are within such other Person's
professional or expert competence and who has been selected with reasonable
care by or on behalf of the Guarantor, including information, opinions, reports
or statements as to the value and amount of the assets, liabilities, profits,
losses, or any other facts pertinent to the existence and amount of assets from
which Distributions to Holders of Preferred Securities might properly be paid.

SECTION 8.2.  INDEMNIFICATION.

   
     The Guarantor agrees to indemnify each Indemnified Person for, and to hold
each Indemnified Person harmless against, any loss, liability or expense
incurred without negligence or bad faith on its part, arising out of or in
connection with the acceptance or administration of the trust or trusts
hereunder, including the costs and expenses (including reasonable legal fees
and expenses) of defending itself against, or investigating, any claim or
liability in connection with the exercise or performance of any of its powers
or duties hereunder.  The provisions of this Section 8.2 shall survive the 
termination of this Preferred Securities Guarantee or the resignation or
removal of the Preferred Guarantee Trustee. 
    


                                   ARTICLE IX
                                 MISCELLANEOUS

SECTION 9.1.  SUCCESSORS AND ASSIGNS.

     All guarantees and agreements contained in this Preferred Securities
Guarantee shall bind the successors, assigns, receivers, trustees and
representatives of the Guarantor and shall inure to the benefit of the Holders
of the Preferred Securities then outstanding.

SECTION 9.2.       AMENDMENTS.

     Except with respect to any changes that do not materially adversely affect
the rights of Holders (in which case no consent of Holders will be required),
this Preferred Securities Guarantee may only be amended with the 



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prior approval of the Holders of at least a Majority in liquidation amount of
the Preferred Securities.  The provisions of Article VI of the Trust Agreement
with respect to meetings of Holders of the Preferred Securities apply to the
giving of such approval.
        
SECTION 9.3.  NOTICES.

     All notices provided for in this Preferred Securities Guarantee shall be
in writing, duly signed by the party giving such notice, and shall be
delivered, telecopied or mailed by registered or certified mail, as follows:

     (a) If given to the Preferred Guarantee Trustee, at the Preferred
Guarantee Trustee's mailing address set forth below (or such other address as
the Preferred Guarantee Trustee may give notice of to the Holders of the
Preferred Securities):

                     The First National Bank of Chicago
                     One First National Plaza
                     Suite 0126
                     Chicago, Illinois 60670-0126
                     Attention Corporate Trust Dept.

     (b) If given to the Guarantor, at the Guarantor's mailing address set
forth below (or such other address as the Guarantor may give notice of to the
Holders of the Preferred Securities):

                     Capitol Bancorp Ltd.,
                     200 Washington Square North
                     Fourth Floor
                     Lansing, Michigan 48933
                     Attention:  Chief Executive Officer

      (c)  If given to any Holder of Preferred Securities, at the address set 
forth on the books and records of the Trust.

      All such notices shall be deemed to have been given when received in
person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address of which no notice was
given, such notice or other document shall be deemed to have been delivered on
the date of such refusal or inability to deliver.

SECTION 9.4.  BENEFIT.

      This Preferred Securities Guarantee is solely for the benefit of the
Holders of the Preferred Securities and, subject to Section 3.1(a), is not
separately transferable from the Preferred Securities.

SECTION 9.5.  GOVERNING LAW.

      THIS PREFERRED SECURITIES GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED
AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF MICHIGAN.





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This Preferred Securities Guarantee is executed as of the day and year first
above written.

                                   CAPITOL BANCORP LTD.
                                     as Guarantor


   
                                   By: /s/ ROBERT C. CARR
                                      ------------------------------

                                   Name: Robert C. Carr
                                        ----------------------------

                                   Title:  Executive Vice President
                                          --------------------------

    

                                   THE FIRST NATIONAL BANK OF CHICAGO
                                   As Preferred Guarantee Trustee

   

                                   By:  /s/ JOHN PRENDIVILLE
                                       -----------------------------

                                   Name:  John Prendiville
                                        ----------------------------

                                   Title: Vice President
                                         --------------------------- 

    








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