Exhibit 5.1

                       September 24, 1999



Board of Directors
Sovereign Bancorp, Inc.
2000 Market Street
Philadelphia, Pennsylvania  19103

Re:  Registration Statement on Form S-3
     (No. 333-86961)

Ladies and Gentlemen:

     In connection with the registration of Common Stock, Debt
Securities, Preferred Stock, Securities Warrants, Depositary
Shares, Stock Purchase Contracts, and Stock Purchase Units with
an aggregate initial public offering price of up to
$2,000,000,000, by Sovereign Bancorp, Inc. (the "Company"),
covered by the Company's Registration Statement on Form S-3 (No.
333-86961) (together with any pre-effective amendments thereto,
the "Registration Statement"), we, as counsel to the Company,
have reviewed:

     (1)  the Articles of Incorporation of the Company;

     (2)  the Bylaws of the Company;

     (3)  the minute books of the Company;

     (4)  a subsistence certificate with respect to the Company
          issued by the Pennsylvania Department of State on
          September 16, 1999;

     (5)  resolutions adopted by the Company's Board of Directors
          on February 13, 1994 and August 18, 1999;

     (6)  the Registration Statement;

     (7)  the Subordinated Indenture and the Senior Indenture
          both dated as of February 1, 1994 between the Company
          and Harris Trust and Savings Bank;

     (8)  the Junior Subordinated Indenture dated September 1,
          1999 between the Company and Harris Trust and Savings
          Bank; and

     (9)  forms of the Debt Securities, the Securities Warrants,
          the Stock Purchase Contracts, and the Depository
          Agreement.

     The documents listed above are hereinafter collectively
referred to as the Documents.  All capitalized terms used herein
but not defined herein shall have the meaning given to them in
the Registration Statement.

                     _______________________

     Based upon our review of the Documents, and subject to the
limitations, qualifications, exceptions and assumptions stated
hereafter, it is our opinion that:

     (1)  The Company has been duly incorporated under the laws
          of the Commonwealth of Pennsylvania and is validly
          existing and in good standing under the laws of such
          Commonwealth.

     (2)  The Subordinated Indenture and the Senior Indenture,
          both dated as of February 1, 1994 and the Junior
          Subordinated Indenture dated as of September 2, 1999
          (individually as "Indenture" and collectively the
          "Indentures") between the Company and Harris Trust and
          Savings Bank, as trustee (the "Trustee"), have been
          duly authorized, executed, and delivered by the Company
          and the Trustee, and constitute valid and legally
          binding obligations of the Company, enforceable in
          accordance with their respective terms.

     (3)  The Debt Securities covered by the Registration
          Statement have been duly authorized for registration
          under the Securities Act of 1933, as amended (the
          "Act"), and when (a) the Board of Directors has
          authorized the issuance thereof and established the
          terms thereof, (b) Officers' Certificates have been
          duly executed and delivered in accordance with the
          applicable Indenture, (c) the Debt Securities have been
          executed and authenticated in the manner set forth in
          the applicable Indenture, (d) the pertinent provisions
          of such state securities and "blue sky" laws as are
          applicable have been complied with, and (e) the Debt
          Securities have been issued, sold, and delivered in
          accordance with the Registration Statement, the
          Prospectus and any Prospectus Supplement relating
          thereto against payment therefor as contemplated by the
          Underwriting Agreement, the Debt Securities will be
          validly executed, authenticated, issued, and delivered,
          and will constitute valid and legally binding
          obligations of the Company enforceable in accordance
          with their respective terms and the terms of the
          applicable Indenture.

     (4)  The Common Stock covered by the Registration Statement
          has been duly authorized for registration under the
          Act, and when (a) the Board of Directors has authorized
          the issuance thereof, (b) the pertinent provisions of
          such state securities and "blue sky" laws as are
          applicable have been complied with, and (c) such shares
          are duly issued, sold and delivered against payment
          therefor as contemplated by the Underwriting Agreement,
          pursuant to and in accordance with the terms described
          in the Registration Statement, the Prospectus, and any
          Prospectus Supplement relating thereto, such Common
          Stock will be validly issued by the Company and fully
          paid and nonassessable.

     (5)  The Preferred Stock covered by the Registration
          Statement has been duly authorized for registration
          under the Act, and when (a) the Board of Directors has
          authorized the issuance thereof and established the
          terms thereof, (b) a Certificate of Designation has
          been duly filed with the Secretary of State of the
          Commonwealth of Pennsylvania, (c) the pertinent
          provisions of such state securities and "blue sky" laws
          as are applicable have been complied with, and (d) such
          shares have been duly issued, sold and delivered
          against payment therefor as contemplated by the
          Underwriting Agreement pursuant to and in accordance
          with the terms described in the Registration Statement,
          the Prospectus and any Prospectus Supplement relating
          thereto, such Preferred Stock will be validly issued by
          the Company and fully paid and nonassessable.

     (6)  The Securities Warrants covered by the Registration
          Statement have been duly authorized for registration
          under the Act, and when (a) the Board of Directors has
          authorized the issuance thereof and established the
          terms thereof, (b) the Securities Warrant Agreement has
          been duly executed and delivered by the Company to the
          Securities Warrant Agent, (c) the Securities Warrants
          have been executed and authenticated in the manner set
          forth in the Securities Warrant Agreement, (d) the
          pertinent provisions of such state securities and "blue
          sky" laws as are applicable have been complied with,
          and (e) the Securities Warrants have been issued, sold
          and delivered against payment therefor as contemplated
          by the Underwriting Agreement, pursuant to and in
          accordance with the Registration Statement, the
          Prospectus and any Prospectus Supplement relating
          thereto, such Securities Warrants will be validly
          executed, authenticated, issued, and delivered and will
          constitute valid and legally binding obligations of the
          Company enforceable in accordance with their respective
          terms and the terms of the Warrant Agreement.

     (7)  The Stock Purchase Contracts covered by the
          Registration Statement have been duly authorized for
          registration under the Act, and when (a) the Board of
          Directors has authorized the issuance thereof and
          established the terms thereof, (b) the Stock Purchase
          Contracts have been duly executed and delivered by the
          Company, (c) the pertinent provisions of such state
          securities and "blue sky" laws as are applicable have
          been complied with, and (d) the Stock Purchase
          Contracts have been issued, sold and delivered against
          payment therefor as contemplated by the Underwriting
          Agreement, pursuant to and in accordance with the
          Registration Statement, the Prospectus and any
          Prospectus Supplement relating thereto, such Stock
          Purchase Contracts will be validly executed, issued,
          and delivered and will constitute valid and legally
          binding obligations of the Company enforceable in
          accordance with their respective terms.

     (8)  The Depositary Shares covered by the Registration
          Statement have been duly authorized for registration
          under the Act, and when (a) the Board of Directors has
          authorized the issuance of such Depositary Shares and
          the underlying Preferred Stock and established the
          terms of such Depositary Shares and underlying
          Preferred Stock, (b) a Statement with Respect to Shares
          with respect to the underlying Preferred Stock has been
          duly filed with the Secretary of State of the
          Commonwealth of Pennsylvania, (c) the Depositary
          Agreement has been duly executed and delivered by the
          Company to the preferred stock depositary, (d) the
          Depositary Shares have been executed by the preferred
          stock depositary in the manner set forth in the
          Depositary Agreement, (e) the pertinent provisions of
          such state securities and "blue sky" laws as are
          applicable have been complied with, and (f) the
          Depositary Shares have been issued, sold, and delivered
          against payment therefor as contemplated by the
          Underwriting Agreement, pursuant to and in accordance
          with the terms of the Registration Statement, the
          Prospectus, and any applicable Prospectus Supplement
          relating thereto, such Depositary Shares will be
          validly issued and delivered and will be fully paid and
          nonassessable.

     (9)  Assuming (a) appropriate corporate action is taken in
          the future to authorize the issuance of Debt
          Securities, Preferred Stock or Common Stock upon
          exercise of any Securities Warrants and to establish
          the terms thereof, (b) a sufficient number of shares of
          Common Stock or Preferred Stock is authorized under the
          Company's articles of incorporation on the date of
          exercise of any Securities Warrants, (c) the Securities
          Warrants have been duly executed, delivered,
          authenticated, issued and exercised in accordance with
          their terms and the terms of the Warrant Agreement and
          in the manner described in the Registration Statement,
          the Prospectus and any Prospectus Supplement relating
          thereto, and (d) no change occurs in any applicable law
          or pertinent facts, when (i) the pertinent provisions
          of all securities laws, including state securities and
          "blue sky" laws, as may be applicable have been
          complied with, (ii) the Securities Warrants are
          exercised in accordance with their terms and the terms
          of the Warrant Agreement, and (iii) the Debt
          Securities, Preferred Stock or Common Stock, as the
          case may be, have been duly executed, authenticated and
          delivered, the Debt Securities issuable upon the
          exercise of any Securities Warrants will constitute
          legal and valid obligations of the Company, enforceable
          in accordance with their respective terms and entitled
          to the benefit of the applicable Indenture, and the
          Preferred Stock or Common Stock, as the case may be,
          issuable upon the exercise of any Securities Warrants
          will be duly authorized, validly issued and fully paid
          and nonassessable.

     (10) Assuming (a) a sufficient number of shares of Common
          Stock or Preferred Stock is authorized under the
          Company's articles of incorporation on the date of
          conversion of any convertible Preferred Stock,
          (b) appropriate corporate action is taken in the future
          to authorize the issuance of any shares of Common Stock
          or Preferred Stock upon conversion of any convertible
          Preferred Stock and to establish the terms thereof,
          (c) the Preferred Stock have been duly issued and
          converted in accordance with their terms and in the
          manner described in the Registration Statement, the
          Prospectus and any Prospectus Supplement relating
          thereto, (d) no change occurs in any applicable law or
          pertinent facts, when (i) the pertinent provisions of
          all securities laws, including state securities and
          "blue sky" laws, as may be applicable have been
          complied with, and (ii) the Preferred Stock are
          converted in accordance with their terms, such shares
          of Common Stock or Preferred Stock, as the case may be,
          issuable upon such conversion will be duly authorized,
          legally issued, fully paid and nonassessable.

     (11) Assuming (a) a sufficient number of shares of Common
          Stock or Preferred Stock is authorized under the
          Company's articles of incorporation on the date of
          conversion or exchange of any Debt Securities,
          (b) appropriate corporate action is taken in the future
          to authorize the issuance of any shares of Common Stock
          or Preferred Stock upon conversion or exchange of any
          Debt Securities and to establish the terms thereof,
          (c) the Debt Securities have been duly issued and
          converted or exchanged, as the case may be, in
          accordance with their terms and the terms of the
          applicable Indenture and in the manner described in the
          Registration Statement, the Prospectus and any
          Prospectus Supplement relating thereto, and (d) no
          change occurs in any applicable law or fact, when
          (i) the pertinent provisions of all securities laws,
          including state securities and "blue sky" laws, as may
          be applicable have been complied with, and (ii) the
          Debt Securities are converted or exchanged in
          accordance with their terms and the terms of the
          applicable Indenture, such shares of Common Stock or
          Preferred Stock, as the case may be, issuable upon such
          conversion or exchange will be duly authorized, legally
          issued and fully paid and nonassessable.

     (12) Assuming (a) appropriate corporate action is taken in
          the future to authorize the issuance of Preferred Stock
          or Common Stock upon exercise of any Stock Purchase
          Contracts and to establish the terms thereof, (b) a
          sufficient number of shares of Common Stock or
          Preferred Stock is authorized under the Company's
          articles of incorporation on the date of exercise of
          any Stock Purchase Contract, (c) the Stock Purchase
          Contracts have been duly executed, delivered, issued
          and exercised in accordance with their terms and in the
          manner described in the Registration Statement, the
          Prospectus and any Prospectus Supplement relating
          thereto, and (d) no change occurs in any applicable law
          or pertinent facts, when (i) the pertinent provisions
          of all securities laws, including state securities and
          "blue sky" laws, as may be applicable have been
          complied with, and (ii) the Stock Purchase Contracts
          are exercised in accordance with their terms, the
          Preferred Stock or Common Stock, as the case may be,
          issuable upon the exercise of any Stock Purchase
          Contracts will be duly authorized, validly issued and
          fully paid and nonassessable.

     The opinions expressed in Paragraph 2 relating to the
Indentures constituting valid and legally binding obligations of
the Company and in Paragraphs 3, 5, 6, 7, and 9 above, relating
to whether the securities described therein will constitute valid
and legal obligations of the Company that will be enforceable in
accordance with their terms, are subject to the exception that
the validity, enforceability, and binding nature of such
securities and Indentures are subject to (a) applicable
bankruptcy, insolvency, reorganization, liquidation,
receivership, conservatorship, readjustment of debt, arrangement,
moratorium or other laws relating to or affecting the rights of
creditors generally, (b) any laws, regulations, or judicial
decisions affecting the rights of creditors of a savings and loan
holding company and any power granted to the Office of Thrift
Supervision, the Federal Deposit Insurance Corporation (the
"FDIC"), or any successor thereto in the event of bankruptcy or
insolvency of any subsidiary of the Company whose deposits are
insured by the FDIC or in the event the FDIC or any other person
is appointed conservator or receiver for any such subsidiary, and
(c) general principles of equity, including without limitation,
concepts of materiality, reasonableness, good faith and fair
dealing, and the possible unavailability of specific performance,
injunctive relief or other equitable remedies, regardless of
whether such enforceability is considered in a proceeding in
equity or at law.

     We call to your attention that we have only reviewed
proposed forms of the Debt Securities, Securities Warrants, Stock
Purchase Contracts, and Depository Agreement.  To the extent that
the actual securities issued and sold under the Registration
Statement differ from such proposed forms of securities, the
opinions expressed herein may not remain applicable.

     We assume no obligation to update or supplement our opinions
set forth herein to reflect any facts or circumstances that may
hereafter come to our attention or any changes in laws that may
hereafter occur.

     We consent to the filing of this opinion as an exhibit to
the Registration Statement, and to the references to us under the
heading "Legal Matters" in the related Prospectus.  In giving
this consent, we do not thereby admit that we come within the
category of persons whose consent is required under Section 7 of
the Securities Act of 1933, as amended, or the Rules and
Regulations of the Securities and Exchange Commission thereunder.

                              Very truly yours,

                              STEVENS & LEE

                              /s/ Stevens & Lee