_Edward III PLANTAGENET __+
| (1312 - 1377) m 1327
_John of Gaunt PLANTAGENET _|
| (1339 - 1398) |
| |_Philippa of AVESNES _____+
| (1311 - 1369) m 1327
_Henry IV LANCASTER _|
| (1367 - 1412) m 1380|
| | _Henry PLANTAGENET _______+
| | | (1310 - 1360)
| |_Blanche of PLANTAGENET ____|
| (1342 - 1368) |
| |_Isabel of BRIENNE _______
| (1320 - 1361)
|
|--Philippa of LANCASTER
| (1394 - 1429)
| _William of BOHUN ________+
| |
| _Humphrey DE BOHUN _________|
| | (1340 - 1372) |
| | |_Elizabeth DE BADLESMERE _+
| |
|_Mary DE BOHUN ______|
(1370 - 1394) m 1380|
| _Richard FITZALAN ________+
| | (1306 - 1375) m 1344
|_Joan FITZALAN _____________|
(1347 - 1419) |
|_Eleanor PLANTAGENET _____+
(1318 - 1372) m 1344