EXHIBIT 99.10 [LETTERHEAD OF TRENWICK GROUP LTD.] LETTER AGREEMENT This Letter Agreement, dated as of December 10, 2002, confirms the agreement of the parties to the matters set forth below. WHEREAS, as a condition to LaSalle Re Limited ("LaSalle Re")...Letter Agreement • March 18th, 2003 • Trenwick America Corp • Fire, marine & casualty insurance • New York
Exhibit 99.8 FOURTH WAIVER TO THE CREDIT AGREEMENT FOURTH WAIVER TO THE CREDIT AGREEMENT (the "Waiver"), dated as of March 14, 2003, among TRENWICK AMERICA CORPORATION, a Delaware corporation (the "Borrower"), Trenwick Holdings LIMITED., a company...The Credit Agreement • March 18th, 2003 • Trenwick America Corp • Fire, marine & casualty insurance
EXHIBIT 99.1 FIFTH AMENDMENT TO THE CREDIT AGREEMENT FIFTH AMENDMENT TO THE CREDIT AGREEMENT (the "Fifth Amendment"), dated as of January 16, 2003, among TRENWICK AMERICA CORPORATION, a Delaware corporation (the "Borrower"), TRENWICK HOLDINGS...Credit Agreement • March 18th, 2003 • Trenwick America Corp • Fire, marine & casualty insurance • New York
EXHIBIT 99.4 SIXTH AMENDMENT AND WAIVER TO THE CREDIT AGREEMENT SIXTH AMENDMENT AND WAIVER TO THE CREDIT AGREEMENT (the "Fifth Amendment"), dated as of January 27, 2003, among TRENWICK AMERICA CORPORATION, a Delaware corporation (the "Borrower"),...Credit Agreement • March 18th, 2003 • Trenwick America Corp • Fire, marine & casualty insurance • New York
Exhibit 99.7 SEVENTH AMENDMENT TO THE HOLDINGS GUARANTY SEVENTH AMENDMENT TO THE HOLDINGS GUARANTY (the "Seventh Amendment"), dated as of March 7, 2003, among TRENWICK GROUP LTD., a company organized under the laws of Bermuda ("Holdings") and the...Trenwick America Corp • March 18th, 2003 • Fire, marine & casualty insurance • New York
