Edward de Courtenay

↓→ Edward de Courtenay B 1332 in , , England D Dec 1419 in , Devonshire, England	↓→ Hugh de Courtenay B 12 Jul 1303 in Okehampton, Devonshire, England D M 11 Aug 1325	↓→ Hugh de Courtenay B 14 Sep 1273 in , Devonshire, England D 23 Dec 1340 in Exeter, Devonshire, England M 1292

		↓→ Agnes St John B in , , England D 11 Jun 1345 in Exeter, Devonshire, England

	↓→ Margaret de Bohun B Apr 1311 in , Northamptonshire, England D 16 Dec 1391	↓→ Humphrey Viii de Bohun B 1276 in Bohun, Essex, England D 16 Mar 1321 M 14 Nov 1302 in Westminster, Middlesex, England	↓→ Humphrey Vii de Bohun B 1249 in Bohun, Essex, England D 31 Dec 1298 M
			↓→ Maud de Fiennes B D
		↓→ Elizabeth Plantagenet B Aug 1282 in Rhuddlan, Flintshire, Wales D May 1316 in Quendon, Essex, England	↓→ Edward I Longshanks B 17 Jun 1239 in Westminster, Middlesex, England D Jul 1307 in Burgh on the Sands, Carlisle, Cumberland, England M Oct 1254 in Las Huelgas
			↓→ Eleanor de Castile B 1241 in , Castile, Spain D 29 Nov 1290 in , , England