_ EDWARD II King of England_+
| (1284 - 1327) m 1308
_ EDWARD III King of England___________________|
| (1312 - 1377) m 1328 |
| |_ ISABELLA of France________+
| (.... - 1358) m 1308
_ JOHN of Gaunt, Duke of Lancaster_|
| (1340 - 1399) m 1371 |
| | _ WILLIAM Count of Hainaut__
| | |
| |_ PHILLIPA of Hainault_________________________|
| (1312 - 1369) m 1328 |
| |____________________________
|
|
|-- CATHERINE
|
| ____________________________
| |
| _ PEDRO The Cruel, King of Castile & Lancaster_|
| | |
| | |____________________________
| |
|_ CONSTANCE of Castile_____________|
(1354 - 1394) m 1371 |
| ____________________________
| |
|_______________________________________________|
|
|____________________________