_Henry II TRASTÁMARA ___+
                                                       | (1333 - 1379)           
                           _John I TRASTÁMARA ________|
                          | (1358 - 1390)              |
                          |                            |_Juana Manuel IVREA _____+
                          |                              (1339 - 1381)           
 _Henry III TRASTÁMARA __|
| (1379 - 1406)           |
|                         |                             _Peter IV BARCELONA _____+
|                         |                            | (1319 - 1386)           
|                         |_Eleanor of BARCELONA ______|
|                           (1357 - 1382)              |
|                                                      |_Eleanor of BARCELONA ___+
|                                                        (1325 - 1375)           
|
|--Maria of TRASTÁMARA 
|  (1401 - 1458)
|                                                       _Edward III PLANTAGENET _+
|                                                      | (1312 - 1377) m 1327    
|                          _John of Gaunt PLANTAGENET _|
|                         | (1339 - 1398)              |
|                         |                            |_Philippa of AVESNES ____+
|                         |                              (1311 - 1369) m 1327    
|_Catherine of LANCASTER _|
  (1373 - 1418)           |
                          |                             _Peter IVREA ____________+
                          |                            | (1334 - 1368)           
                          |_Constance of IVREA ________|
                            (1354 - 1393)              |
                                                       |_Maria of PADILLA _______