Exhibit 5.1

October 31, 2001



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

Re:  Registration Statement on Form S-3
     (No. 333-71568)

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
$1,000,000,000, by Sovereign Bancorp, Inc. (the "Company"),
covered by the Company's Registration Statement on Form S-3 (No.
333-71568) (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
          October 29, 2001;

     (5)  resolutions adopted by the Company's Board of
          Directors (the "Board of Directors") on February 13,
          1994, August 18, 1999 and September 20, 2001;

     (6)  the Registration Statement;

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

     (8)  the Junior Subordinated Indenture (the "Junior
          Subordinated Indenture") dated September 1, 1999
          between the Company and BNY Midwest Trust Company
          (successor to 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.

_______________________

     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 1, 1999
          (each, an "Indenture" and collectively, the
          "Indentures") between the Company and BNY Midwest
          Trust Company (successor to 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 applicable 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
          applicable 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 Statement with Respect to Shares
          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 applicable 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 applicable
          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 applicable
          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 applicable 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
          applicable 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 has been duly issued
          and converted in accordance with its 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 is
          converted in accordance with its 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 (including the filing
          of a Statement with Respect to Shares with the
          Secretary of State of the Commonwealth of Pennsylvania
          in the case of 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 (including the filing of a Statement with
          Respect to Shares with the Secretary of State of the
          Commonwealth of Pennsylvania in the case 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.

_______________________

     With respect to all documents examined by us, we have
assumed (i) the authenticity of all documents submitted to us as
authentic originals, (ii) the conformity with the originals of
all documents submitted to us as copies or forms, and (iii) the
genuineness of all signatures.

     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.

     This opinion is limited to the laws of the Commonwealth of
Pennsylvania, and we have not considered and express no opinion
on the laws of any other jurisdiction.  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