Robert de Ros

↓→ Robert de Ros B D	↓→ Robert de Ros B 1206 in Wark on Tweed, Northumberland, England D M	↓→ 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
			↓→ Rohese Trussebut B 1146 in Hamlake, Yorkshire, England D Dec 1196 in Helmsley, Yorkshire, England
		↓→ 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
			↓→ Isabel d'Avenal B 1138 in Sandhurst, Gloucestershire, England D
	↓→ Christian Bertram B ABT 1216 in Mitford, Northumberland, England D	↓→ Roger Bertram B ABT 1188 in Mitford, Northumberland, England D M	↓→ William Bertram B ABT 1156 in Mitford, Northumberland, England D ABT 1205 M
			↓→ Alice de Umfreville B ABT 1165 in , Northumberland, England D
		↓→ Agnes B ABT 1196 D