Exhibit 32.2


                        CERTIFICATION OF PERIODIC REPORT

I, Michael O'Reilly, Vice Chairman and Chief Financial Officer of The Chubb
Corporation (the "Corporation"), certify, pursuant to 18 U.S.C. Section 1350
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)   the Quarterly Report on Form 10-Q of the Corporation for the quarterly
      period ended March 31, 2005 (the "Report") fully complies with the
      requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
      1934 (15 U.S.C. 78m or 78o(d)); and

(2)   the information contained in the Report fairly presents, in all material
      respects, the financial condition and results of operations of the
      Corporation.

Dated:  May 9, 2005


/s/ Michael O'Reilly
-----------------------------------------
Michael O'Reilly
Vice Chairman and Chief Financial Officer