In Domesday William fitz Ralf held 2-1/2 hides in Lutton and in Castor, Northants., of the Abbot of Petersborough and he also held a fee in Massingham and Butterwick, Co. Lincs. His successor appears to have been his son, Ralf fitz William, who held in the time of Henry I (V.C.H. Northants., vol. I, pp. 315b, 387b; II, p. 584; Bridges Northamptonshire, vol. II, pp. 402, 500) and these passed to John, son of William de Douvres, who mortgaged Lutton to Aaron of Lincoln, the Jew, for 50 marks, which on his death becme payable to the King (Pipe R. Northants., 3 rich. I, 1191/2).175