_Edward II PLANTAGENET _+
| (1284 - 1327) m 1307
_Edward III PLANTAGENET _|
| (1312 - 1377) m 1327 |
| |_Isabella of FRANCE ____
| (1292 - 1358) m 1307
_John of Gaunt PLANTAGENET _|
| (1339 - 1398) |
| | _William III AVESNES ___+
| | | (1286 - 1337)
| |_Philippa of AVESNES ____|
| (1311 - 1369) m 1327 |
| |_Joan of VALOIS ________+
| (1294 - 1341)
|
|--Isabel of LANCASTER
| (1368 - 1368)
| _Henry PLANTAGENET _____+
| | (1281 - 1345) m 1296
| _Henry PLANTAGENET ______|
| | (1310 - 1360) |
| | |_Maud CHAWORTH _________+
| | (1281 - 1322) m 1296
|_Blanche of PLANTAGENET ____|
(1342 - 1368) |
| ________________________
| |
|_Isabel of BRIENNE ______|
(1320 - 1361) |
|________________________