Avice de Lancaster

↓→ Avice de Lancaster B ABT 1147 in , , England D 11 Jun 1217	↓→ William de Lancaster B ABT 1100 in Kendall, Westmoreland, England D M	↓→ Gilbert de Lancaster B ABT 1089 in , , England D M

		↓→ Godith B ABT 1091 in , , England D	↓→ Fulk Fitzreinsfred B 1050 in , , England D M
			↓→ Alice St Quinton B 1052 in , , England D
	↓→ Gundred de Warren B ABT 1117 in Warrick, Warwickshire, England D 1166 in , Warwickshire, England	↓→ William Ii de Warren B ABT 1081 in , Sussex, England D 11 May 1138 in , , England M 1109	↓→ William I de Warren B 1055 in , , France D 24 Jun 1088 in Lewes, Sussex, England M in , Normandy, France
			↓→ Gundred de Normandy B ABT 1053 in , Normandy, France D 27 May 1085 in Castle Acre, Norfolk, England
		↓→ Isabel de Vermandois B 1081 in Vermandois, Normandy, France D 17 Feb 1130 in Meulan, D-Sens, France	↓→ Hugh Magnus de Crepi B 1057 in , , France D 18 Oct 1101 M
			↓→ Adelaide de Vermandois B in Vermandois, Normandy, France D ABT 1120 in Meulan, D-Sens, France