William (Sir); JP Lincs 1279-80; married c1250-60 Alice, eldest daughter and coheir of 1st and last Lord (Baron) Beke, of Eresby, Lincs, and died by 29 March 1300. [Burke's Peerage]
-------------------------
WILLIAM DE WILLOUGHBY, son and heir, as the result of a lawsuit, Michaelmas 1258, with his cousin (of the senior line), William son of Hugh de Willoughby, obtained by fine, 13 October 1259, legal recognition of his possession of the manor of Willoughby in the Marsh, with its appurtenances, to hold of the said William, son of Hugh, and his heirs for ever. He was granted free warren in his demesne lands, 20 February 1267/8, and claimed these rights at Quo Warranto proceedings in 1281; was ordered, August 1278, to aid the sheriff of Lincolnshire in conducting an enquiry about Flemish shipping coming to Boston, Lincs; and was active, with his father-in-law, as a justice in Lincolnshire, 1279-80.
He married, circa 1250-60, Alice, 1st daughter and coheir of John (BEKE), LORD BEKE, of Eresby, Lincs. He was living, September 1290, but died before 29 March 1300. Alice apparently survived her father, who died 1303-04, and died before May 1311. [Complete Peerage XII/2:657, (transcribed by Dave Utzinger)]