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                                                             Exhibit 99.906.Cert

FORM N-CSR ITEM 10(b) EXHIBIT


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

           The undersigned hereby certify in their capacity as Treasurer and
President, respectively, of Tax-Managed International Growth Portfolio (the
"Portfolio"), that:

   (a)  the Annual report of the Portfolio on Form N-CSR for the period ended
        October 31, 2003 (the "Report") fully complies with the requirements of
        Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as
        amended; and

   (b)  the information contained in the Report fairly presents, in all material
        respects, the financial condition and the results of operations of the
        Portfolio for such period.

A SIGNED ORIGINAL OF THIS WRITTEN STATEMENT REQUIRED BY SECTION 906 HAS BEEN
PROVIDED TO THE PORTFOLIO AND WILL BE RETAINED BY THE PORTFOLIO AND FURNISHED TO
THE SECURITIES AND EXCHANGE COMMISSION OR ITS STAFF UPON REQUEST.

Date: December 31, 2003
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/S/ Kristin S. Anagnost
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Kristin S. Anagnost
Treasurer

Date: December 31, 2003
      -----------------


/S/ Duncan W. Richardson
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Duncan W. Richardson
President