Exhibit 23(d)10 AMENDMENT TO SUBINVESTMENT MANAGEMENT AGREEMENT This amendment ("Amendment") is made as of March 12, 2003 by and among John Hancock Variable Series Trust I (the "Series"), Capital Guardian Trust Company ("Adviser"), and John Hancock...

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                                                                 Exhibit 23(d)10

                 AMENDMENT TO SUBINVESTMENT MANAGEMENT AGREEMENT

     This amendment ("Amendment") is made as of March 12, 2003 by and among Xxxx
Xxxxxxx Variable Series Trust I (the "Series"), Capital Guardian Trust Company
("Adviser"), and Xxxx Xxxxxxx Life Insurance Company, a Massachusetts
corporation formerly known as "Xxxx Xxxxxxx Mutual Life Insurance Company"
("JHLICO").

                                    RECITALS

          A. Series, Adviser and JHLICO are parties to that certain
     Sub-Investment Management Agreement among Xxxx Xxxxxxx Variable Series
     Trust I, Capital Guardian Trust Company ("Adviser") and Xxxx Xxxxxxx Life
     Insurance Company dated November 1, 2000, (the "Agreement") wherein Adviser
     is appointed as sub-investment manager of the Global Bond Fund ("Subject
     Fund").

          B. The parties hereto desire to amend the terms of the Agreement in
     accordance with Rule 12d3-1 under the Investment Company Act of 1940
     pursuant to the terms of this Amendment.

                                    AMENDMENT

     Now, therefore, for good and valuable consideration, receipt whereof is
hereby acknowledged, the parties hereby agree as follows:

          4.   Recitals A and B are incorporated herein and made a part hereof.

          5.   Capital Guardian Trust Company will not consult with any other
               sub-manager to the Global Bond Fund or to any other Portfolio of
               the Series concerning transactions of the Global Bond Fund in
               securities or other assets, except as such consultations may be
               reasonably necessary in order to ensure compliance with
               paragraphs (a) and (b) of Rule 12d3-1 under the 1940 Act.

          6.   This Amendment may be executed in two or more counterparts which
               together shall constitute one instrument.



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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed as of the day first set forth above.

XXXX XXXXXXX VARIABLE SERIES TRUST I


By: /s/ Xxxxxxx X. Xxx Xxxx
    ------------------------------------
    Name: Xxxxxxx X. Xxx Xxxx
    Title: President and CEO


XXXX XXXXXXX LIFE INSURANCE COMPANY


By: /s/ Xxxxxx X. Xxxxxxx
    ------------------------------------
    Name: Xxxxxx X. Xxxxxxx
    Title: Senior Vice President and Chief Investment Strategist


Capital Guardian Trust Company


By: /s/ Xxxxxxx X. Xxxx
    ------------------------------------
    Name: Xxxxxxx X. Xxxx
    Title: Vice President



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