EXHIBIT 4.11 CERTIFICATE OF TRUST The undersigned, the trustees of BANK ONE Capital III, desiring to form a business trust pursuant to Delaware Business Trust Act, 12 Del. C. (S) ---- -- - 3810, hereby certify as follows: (a) The name of the business trust being formed hereby (the "Trust") is "BANK ONE Capital III." (b) The name and business address of the trustee of the Trust which has its principal place of business in the State of Delaware is as follows: Chase Manhattan Bank Delaware 1201 Market Street Wilmington, DE 19801 (C) This Certificate of Trust shall be effective as of the date of filing. Dated: June 17, 1999 /s/ M. EILEEN KENNEDY ------------------------------------ Name: M. Eileen Kennedy Title: Trustee /s/ ROBERT A. ROSHOLT ------------------------------------ Name: Robert A. Rosholt Title: Trustee Chase Manhattan Bank Delaware, as Trustee By: /s/ DENIS KELLY ------------------------------------ Name: Denis Kelly Title: Assistant Vice President