---------------

                                                 EXHIBIT # 10.20

                                                 ---------------





                                 April 28, 1995

Barry A. Turkus
11987 Murietta Lane
Los Altos Hills, CA 94022


             RE:  AGREEMENT NOT TO STAND FOR REELECTION AS DIRECTOR
                  OF SILICON VALLEY BANCSHARES AND SILICON VALLEY BANK
                  AND MUTUAL GENERAL RELEASE OF CLAIMS

Dear Barry:

          This letter agreement ("Agreement") is made and entered into this
28th day of April, 1995 (the "Effective Date") by and among Silicon Valley
Bancshares ("Bancshares"), Silicon Valley Bank (the "Bank") and Barry A.
Turkus (the "Director") with reference to the following.

          The Director has served as a director of Bancshares and the Bank.
The Boards of Directors of Bancshares and the Bank have determined to reduce
the authorized number of directors from 12 to 10, with respect to the
Bancshares Board, effective as of the date of Bancshares' 1995 annual meeting
of shareholders, and from 11 to 9, with respect to the Bank's Board,
effective as of the date of the Bank's 1995 annual meeting of shareholders.
The Director, Bancshares and the Bank have decided that it is in their mutual
best interests for the Director not to stand for reelection at the
Bancshares' 1995 annual meeting or at the Bank's 1995 annual meeting.

          During 1994, persons serving as nonemployee directors of Bancshares
and the Bank, including the Director, were authorized to receive restricted
grants of Bancshares' common stock as compensation for their service as
directors for each of the 1994-1995, 1995-1996 and 1996-1997 terms of office.
As authorized by the Bancshares' and Bank's Boards of Directors, these stock
grants are to be awarded in amounts of 2,500 per year and are subject to
certain restrictions on resale or transfer.  In connection with the
foregoing, it has previously been determined that the Director is to receive
a restricted stock grant of 2,500 shares for his service during the 1994-1995
term. Because the Director will not stand for reelection at Bancshares' 1995
annual meeting or the Bank's 1995 annual meeting, the Director is not
entitled to receive a stock grant or other form of compensation in connection
with the 1995-1996 or 1996-1997 terms of office.

          Notwithstanding the foregoing, however, and in addition to the
2,500 shares he is to receive as compensation for his 1994-1995 term, in
consideration of the Director's execution of this

                                        1



Agreement, Bancshares and the Bank have agreed to grant to the Director 2,500
unrestricted shares of Bancshares' common stock (the "Stock Grant"), which
Stock Grant shall be made as of the Effective Date hereof.

          Now, therefore, in consideration of the foregoing and performance
of this Agreement and of the covenants and promises herein contained, the
adequacy and receipt of which consideration is hereby acknowledged, the
parties hereto agree as follows:

          1.   The Director shall not stand for reelection as a director of
Bancshares or the Bank at Bancshares' 1995 annual meeting or at the Bank's
1995 annual meeting and will not accept nomination to either Board by any
person.

          2.   As of the Effective Date, Bancshares shall make the Stock
Grant to the Director.  The Director acknowledges in this regard that, except
with respect to the restricted stock grant (the "1994 Grant") to be made in
connection with his service during the 1994-1995 term of office, he is not
otherwise entitled to receive a grant of stock or other payment from
Bancshares or the Bank in consideration for his service as a director of
Bancshares or the Bank.  Shares of stock issued pursuant to the Stock Grant
shall not be subject to any resale restrictions by Bancshares or the Bank
(although other restrictions on sale or transfer may apply under applicable
securities laws). Additionally, the 1994 Grant shall not be subject to any
resale restrictions by Bancshares of the Bank (assuming shareholder approval
is received at the 1995 Annual Meeting of Shareholders to delete existing
resale restrictions) (although other restrictions on sale or transfer may
apply under applicable securities laws).

          3.   From and after the Effective Date, the Director, on the one
hand, and Bancshares and the Bank, on the other hand, on behalf of themselves
and their respective heirs, legal representatives, successors and assigns,
irrevocably release and discharge each other and their respective heirs,
legal representatives, successors and assigns, officers, directors,
shareholders, attorneys, agents and employees, and each of them, from any and
all causes of action, claims, actions, rights, demands, obligations, damages
or liabilities of whatever kind or character, which they may have against
each other, whether known or unknown.

          4.   The Director, on the one hand, and Bancshares and the Bank, on
the other hand, on behalf of themselves and their respective heirs, legal
representatives, agents, successors and assigns, expressly waive all rights
afforded by California Civil Code Section 1542 and do so acknowledging the
significance of such specific waiver.  The Director further acknowledges that
he has been afforded the opportunity to be represented in this matter by
counsel. The Director, on the one hand, and Bancshares and the Bank, on the
other hand, acknowledge that they are familiar with the provisions of
California Civil Code Section 1542, which provides as follows:

                    A general release does not extend to claims which
                    the creditor does not know or suspect to exist in
                    his favor at the time of executing the release,
                    which if known by him must have materially
                    affected his settlement with the debtor.

                                        2




          5.   The Director agrees to maintain confidentiality with respect
to all confidential information of any type which the Director may have
obtained during the course of his service as a director of Bancshares or the
Bank.  The Director further agrees to maintain the confidentiality of this
Agreement and its underlying facts or circumstances. The Director further
agrees to return to Bancshares or the Bank, upon their reasonable request,
all manuals, documents, files or other proprietary materials used by the
Director during his service, which the Director acknowledges to be the
property of Bancshares or the Bank, as the case may be.

          6.   The Director acknowledges that, pursuant to Bancshares' 1983
and 1989 stock option plans (the "Plans"), stock options previously granted
to the Director under the Plans must be exercised within 3 months following
termination of the Director's status as a director of Bancshares or the Bank
and otherwise in accordance with the requirements of the Plans.

          7.   Bancshares, the Bank and the Director acknowledge and agree
that they shall not now or in the future make to any other person any
negative or otherwise disparaging comments or statements about the other, or
any of their respective officers, agents or employees, including disparaging
comments regarding business practices, and that none of them shall
communicate to any person any facts or opinions that might tend to reflect
adversely upon the other or to harm the reputation of the other in the
conduct of their respective personal, business or professional affairs.
Without limiting the generality of the foregoing sentence, Bancshares and the
Bank agree that, when responding to inquiries by third parties regarding the
circumstances of the Director's departure from the Bancshares Board and the
Bank Board, Bancshares and/or the Bank will communicate that the Director
left the Boards in good standing. The Director acknowledges and agrees that
he shall not interfere with, nor cause interference with, the conduct of
Bancshares' or the Bank's 1995 annual shareholders' meetings.  The Director
further acknowledges and agrees that he will not participate in any proxy
contests with respect to any such 1995 meetings or otherwise interfere with
the proxy solicitation efforts relating thereto.

          8.   Bancshares, the Bank and the Director acknowledge and agree
that in the event of any breach of any term or provision of this Agreement,
such party shall indemnify and hold harmless each of the other parties from
and against any and all claims, demands, causes of action, obligations,
damages or liabilities, including reasonable costs and attorneys' fees,
arising from or in connection with that breach.

          9.   Bancshares and the Bank shall indemnify the Director to the
maximum extent permitted under the respective companies' bylaws, the
California Corporations Code, and  the Directors and Officers Liability
Insurance maintained by the respective companies.  The provisions of this
paragraph shall inure to the benefit of Director's estate, executor,
administrator, heirs, legatees and devisees.

          10.  This Agreement shall be governed by and construed in
accordance with the laws of California.

          11.  This Agreement contains all of the terms and conditions agreed
upon by the parties hereto relating to the subject matter hereof and
supersedes any prior agreements,

                                        3



negotiations or representations, whether oral or written, relating thereto.
Should any provision of this Agreement be held invalid or illegal, the
remaining portions of this Agreement shall remain fully enforceable in
accordance with their terms.  Any amendment or modification of this Agreement
must be in writing and executed by the Director and duly authorized
representatives of Bancshares and the Bank.  This Agreement may be executed
in one or more counterparts, each of which shall be deemed an original, all
of which together shall constitute one and the same instrument.

          Please acknowledge your acceptance of this Agreement and each of
the respective terms hereof by signing and dating below.

                              Very truly yours,



                              SILICON VALLEY BANCSHARES

                              By:  s/ Clarence J. Ferrari, Jr.
                                ----------------------------------
                                 Clarence J. Ferrari, Jr., Chairman

                              Date:     5/17/95
                                   ---------------


                              SILICON VALLEY BANK

                              By:  s/ Clarence J. Ferrari, Jr.
                                 ----------------------------------
                                  Clarence J. Ferrari, Jr., Chairman

                              Date:     5/17/95
                                   ---------------


                              DIRECTOR

                              s/ Barry A. Turkus
                              ---------------------------------
                                 Barry A. Turkus

                              Date:     5/3/95
                                   --------------------

                                        4