<DOCUMENT>
<TYPE>EX-99.6
<SEQUENCE>6
<FILENAME>y40848ex99-6.txt
<DESCRIPTION>CONSENT OF DOUGLAS A. WARNER
<TEXT>

<PAGE>   1
                                                                    Exhibit 99.6

                                     CONSENT

                  I, Douglas A. Warner III, hereby consent to being named in the
Joint Proxy Statement-Prospectus included in the Registration Statement on Form
S-4 filed by The Chase Manhattan Corporation ("Chase") in connection with the
Agreement and Plan of Merger, dated as of September 12, 2000, between Chase and
J.P. Morgan & Co. Incorporated ("Morgan") as a person who will become a director
of the surviving corporation of the merger of Morgan with and into Chase.

Dated: October 2, 2000


                                           /s/ Douglas A. Warner III
                                           -------------------------------------
                                              Douglas A. Warner III
</TEXT>
</DOCUMENT>
