William de Ros

↓→ William de Ros B ABT 1192 in Helmsley, Yorkshire, England D 1264 in , , France	↓→ Robert de Ros B 1170 in Helmsley, Yorkshire, England D 11 Dec 1226 in Helmsley, Yorkshire, England M 1191 in Haddington, Lincolnshire, England	↓→ Everard de Ros B 1144 in Helmsley, Yorkshire, England D 1183 M 1166 in Helmsley, Yorkshire, England	↓→ Robert de Ros B 1124 in Helmsley, Yorkshire, England D 1160 in Helmsley, Yorkshire, England M
			↓→ Sybilla de Valoines B 1128 in , Somersetshire, England D 1218 in , Yorkshire, England
		↓→ Rohese Trussebut B 1146 in Hamlake, Yorkshire, England D Dec 1196 in Helmsley, Yorkshire, England	↓→ William Trussebut B D M
			↓→ Aubrey de Harcourt B ABT 1130 D
	↓→ Isabel Canmore d'Avenal B ABT 1167 in Edinburgh, Midlothian, Scotland D	↓→ William I the Lion B 1143 in , , Scotland D Dec 1214 in Sterling, Sterlingshire, Scotland M	↓→ Henry I B 1114 in , , Scotland D 12 Jun 1152 M 1139
			↓→ Ada de Warren B ABT 1120 in , Surrey, England D 1178
		↓→ Isabel d'Avenal B 1138 in Sandhurst, Gloucestershire, England D	↓→ Richard Avenal B ABT 1117 in Sandhurst, Gloucestershire, England D ABT 1180 in Edinburgh, Midlothian, Scotland M
			↓→ Sibyl de Saluzza B ABT 1120 in Stirling, Stirlingshire, Scotland D ABT 1170 in Stirling, Stirlingshire, Scotland