His [Ralph's] son Gervase, who had succeeded to the honor of Dudley by 1153, also held land in the bailiwick of Le Passeis in Normandy. He m. after Aug 1153, Isabel, daughter of Robert, Earl of Leicester, and widow of Simon de St. Liz II, Earl of Northampton and Huntingdon. He d. before Michaelmas, 1194, when his son Robert having d. in his lifetime, his heir was his nephew Ralph de Somery, son of John de Somery, by his sister Hawise. [Complete Peerage X:320]