He [Nicholas Martin] married, 2ndly, in 1259 or 1260, Isabel, widow of Hugh PEVEREL, and granddaughter and coheiress of Ralph FITZWILLIAM, of Brompton Ralph and Withycombe, which Isabel held the manor of Brown in Treborough, a third of the original manor of Withycombe, and other lands. He died early in 1282, an inquisition after his death being taken 22 March 1281/2. [Complete Peerage VIII:533-5, (transcribed by Dave Utzinger)]