Domesday Book was compiled between 1086 and about 1088. The exact purpose of the survey is unclear, but it was probably intended to be the basis for taxation. The book compares landholding and possessions under Edward the Confessor with the situation in 1086. Parts of the country were not surveyed, especially in the far north, where William the Conqueror's authority was weak, and the returns for some large towns, including London and Winchester, were not written up into the final version. This entry lists houses in the borough of Warwick.