William de Leybourne

↓→ William de Leybourne B D	↓→ Roger Leybourne B D M



	↓→ Idonia Vipont B D	↓→ Robert de Vipont B 1239 in Brougham Castle, Westmoreland, England D Jun 1264 M ABT 1253 in Woodham, Essex, England	↓→ Robert de Vipont B ABT 1186 in , Westmoreland, England D M
			↓→ Idonea de Builly B ABT 1188 D
		↓→ Isabel Fitzjohn B ABT 1239 in Shere, Surrey, England D 1264	↓→ John Fitzgeoffrey B ABT 1206 in Shere, Surrey, England D M
			↓→ Isabel Bigod B 1212 in Thetford, Norfolk, England D