John married Alianor Of LANCASTER between Jun and 23 Aug 1337. Alianor (daughter of Henry Of LANCASTER and Maud DE CHAWORTH) was born about 1318 in Grismond Castle, Monmouthshire, England; died on 11 Jan 1372 in Arundel, Sussex, England; was buried in Lewes Priory. [Group Sheet] [Family Chart]