<ARTICLE> 7 <LEGEND> This schedule contains summary financial information extracted from the Financial Statements contained in the Form 10-Q for the six months ended June 30, 1997 for Trenwick Group Inc. </LEGEND> <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <EXCHANGE-RATE> 1 <DEBT-HELD-FOR-SALE> 790,075 <DEBT-CARRYING-VALUE> 0 <DEBT-MARKET-VALUE> 0 <EQUITIES> 36,463 <MORTGAGE> 0 <REAL-ESTATE> 0 <TOTAL-INVEST> 826,538 <CASH> 10,012 <RECOVER-REINSURE> 79,981 <DEFERRED-ACQUISITION> 23,836 <TOTAL-ASSETS> 1,038,016 <POLICY-LOSSES> 496,062 <UNEARNED-PREMIUMS> 83,374 <POLICY-OTHER> 0 <POLICY-HOLDER-FUNDS> 0 <NOTES-PAYABLE> 0 <PREFERRED-MANDATORY> 110,000 <PREFERRED> 0 <COMMON> 1,194 <OTHER-SE> 335,472 <TOTAL-LIABILITY-AND-EQUITY> 1,038,016 <PREMIUMS> 101,019 <INVESTMENT-INCOME> 23,852 <INVESTMENT-GAINS> 1,916 <OTHER-INCOME> 10 <BENEFITS> 58,290 <UNDERWRITING-AMORTIZATION> 31,957 <UNDERWRITING-OTHER> 12,701 <INCOME-PRETAX> 23,849 <INCOME-TAX> 5,455 <INCOME-CONTINUING> 18,394 <DISCONTINUED> 0 <EXTRAORDINARY> 1,037 <CHANGES> 0 <NET-INCOME> 17,357 <EPS-PRIMARY> 1.50 <EPS-DILUTED> 1.45 <RESERVE-OPEN> 0 <PROVISION-CURRENT> 0 <PROVISION-PRIOR> 0 <PAYMENTS-CURRENT> 0 <PAYMENTS-PRIOR> 0 <RESERVE-CLOSE> 0 <CUMULATIVE-DEFICIENCY> 0