According to Wace, two members of the de Lacy family were at the Battle of Hastings. It is not certain, but they were probably Walter and his brother Ilbert de Lacy, who were both in control of extensive land holdings in England soon after the Conquest.
Ilbert was a major participant in the Harrying of the North (1069–70) which effectively ended the quasi-independence of the region through large-scale destruction that resulted in the relative "pacification" of the local population and the replacement of local Anglo-Danish lords with Normans. In return, he received vast grants of land in West Yorkshire, where he built Pontefract Castle.
The Honour of Pontefract, which included the manor of Stanbury, was maintained by Ilbert's direct male descendants for the next three generations until 1192. It continued in the female line until 1348.
|Robert de Lacy (c1075-)||1075 England|
|Ilbert de Lacy (1045-1093)||1045 Lassy, Calvados, Normandy, France||1093 Pontefract, West Yorkshire, England|
|Walter de Lacy (-1085)|