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There were 17 by-elections in the 1997 Parliament. Of these by-elections, only two, Romsey and South Antrim, resulted in a change in winning party compared with the 1997 General Election. Ten of the by-elections were caused by the death of the sitting Member of Parliament and five were due to resignations. The 1997-2001 Parliament was the first Parliament since 1951-55 where the party in Government has not lost a seat at a by-election. The Conservative win in Uxbridge was their first at a by-election since February 1989.