[1] He is believed to have originated at any one of the manors called Claville or Clasville in the Duchy of Normandy, namely:[2] His brother was Gotshelm, also a Devonshire tenant-in-chief, whose estates also later formed part of the feudal barony of Gloucester.
[4] It is not known whether he married and left progeny, however Walter II de Claville (supposed by Cleveland to be his grandson[5]) in about 1170 gave many of Walter I's former Domesday Book estates to a priory which he established on his estate of Leigh within his manor of Burlescombe, later known as Canons' Leigh Priory.
[13] There was however at some time a dispute over the inheritance between Thomas Beare and Sir Henry Perchey (alias Percehay).
[23] According to Hutchins four of the manors held by Walter de Claville in Domesday "seem to have passed at a very early period to a younger son—perhaps before the time of Henry II.
Robert de Clavile held a fee in 'Porbica' in the time of Henry I., of which two hides were given to the Abbot of Tewkesbury, probably about 1106, soon after the Monastery of Cranborne became a priory dependent upon the former house.