Isabel Fitz John Parents Father: John Fitz Geoffrey (–1258) Mother: Isabel Bigod Family Spouse: Robert de Vespont (–1264) Children: Isabel de Vespont (–14 May 1292) m. Roger de Clifford (–6 Nov 1282) Children: Robert de Clifford (1274–1314) ← Surname index Father: John Fitz Geoffrey (–1258)Mother: Isabel Bigod