Richard Og de Burgh

↓→ Richard Og de Burgh B 1259 in , Ulster, Ireland D 29 Jul 1326 in Cashel, Tipperary, Scotland	↓→ Walter de Burgh B 1232 in , , Ireland D 28 Jul 1271 M	↓→ Richard de Burgh B 1186 in Connaught, Northern Ireland D 17 Feb 1242 in , , France M	↓→ William de Burgh B D 1205 M
			↓→ Isabel O'Brien B D
		↓→ Egidia de Lacy B 1196 in , Meath, Ireland D 24 Feb 1240 in , , Ireland	↓→ Walter de Lacy B 1172 in , Herefordshire, England D 24 Feb 1241 in Leinster, Dublin, Ireland M
			↓→ Margaret de Braose B 1177 in Abergavenny, Wales D 19 Nov 1200 in , Meath, Ireland
	↓→ Aveline Fitzjohn B ABT 1241 in Shere, Surrey, England D 20 May 1274	↓→ John Fitzgeoffrey B ABT 1206 in Shere, Surrey, England D M	↓→ Geoffrey de Mandeville Fitzpiers B 1162 in , Essex, England D 14 Oct 1213 in , , England M
			↓→ Aveline de Clare B 1172 in Herefordshire, England D 1225 in , , England
		↓→ Isabel Bigod B 1212 in Thetford, Norfolk, England D	↓→ Hugh le Bigod B 1186 in , Norfolk, England D 18 Feb 1225 in Thetford, Norfolk, England M 1207 in Pembroke, Pembrokeshire, Wales
			↓→ Matilda Maud Marshall B 1194 in Pembroke, Pembrokeshire, Wales D 27 Mar 1248 in Tintern Abbey, Monmouthshire, England