William flourished in the reign of Henry I, and of whom the Great PipeRoll of 31 of Henry I, 1130/1, makes much mention. This Pipe Roll provesWilliam Tregoze to have been a man of great consequence, and to have beenconcerned in Norfolk, Essex, Berks and Lincolnshire; and moreover that hethen had the lands of William Peberell of London. William Tregoze marriedand had issue and very probably Agnes Tregoze, who we find living in 9thof Richard I, as concerned in Norfolk and Essex was his widow. His issuewas apparently three sons and a daughter: Geoffrey, his heir, Sir Robertand John and Albreda, wife of Richard de Besville.