Warwick was a parliamentary borough consisting of the town of Warwick, within the larger Warwickshire constituency of England.
It returned two Members of Parliament (MPs) to the House of Commons of England from 1295 to 1707, to the House of Commons of Great Britain from 1707 to 1800, and then to the House of Commons of the Parliament of the United Kingdom until 1885[citation needed].
Under the Redistribution of Seats Act 1885, the constituency was abolished for the 1885 general election, when it was largely replaced by the new single-member constituency of Warwick and Leamington.
Greville resigned, causing a by-election.
Douglas was appointed a commissioner of Greenwich Hospital, requiring a by-election.