William; fought on King Stephen's side at the Battle of the Standard 1138 against the invading Scots under David I; founded Sallay Abbey Jan 1147/8, having presented the Abbey with lands for its upkeep and a site for its physical construction; probably founded also Stainfield Priory, Lincs, and made gifts to Byland and Fountains Abbeys, at the latter of which he was later buried; married 1st Alice or Adelaide de Tonbridge (died between 1148 and c1166), probably daughter of Richard FitzGilbert de (Lord of) Clare by Alice, sister of Ranulph, Earl of Chester; married 2nd c1166, as her 2nd of three husbands, Sibyl de Vaognes (died in or after 1212), widow of Robert de Ros, and dspml by Easter 1175. [Burke's Peerage]