Walter FitzOther was a feudal baron of Eton in Buckinghamshire and was the first Constable of Windsor Castle in Berkshire, a principal royal residence of King William the Conqueror, and was a tenant-in-chief of that king of 21 manors in the counties of Berkshire, Buckinghamshire, Surrey, Hampshire and Middlesex, as well as holding a further 17 manors as a mesne tenant in the same counties.

Eton is a town in Berkshire, England, on the opposite bank of the River Thames to Windsor, connected to it by Windsor Bridge. The civil parish, which also includes the village of Eton Wick two miles west of the town, had a population of 4,692 at the 2011 Census. Within the boundaries of the historic county of Buckinghamshire, in 1974 it came under the administration of Berkshire following the Local Government Act 1972; since 1998 it has been part of the unitary authority of Windsor and Maidenhead. The town is best known as the location of Eton College.