_Louis I WITTELSBACH __________+
                                                     | (1229 - 1293)                 
                           _Louis IV WITTELSBACH ____|
                          | (1282 - 1347)            |
                          |                          |_Matilda of HABSBURG __________+
                          |                            (1253 - 1304)                 
 _Stephen II WITTELSBACH _|
| (1319 - 1375)           |
|                         |                           _Bolko I PIAST ________________+
|                         |                          | (1252 - 1301)                 
|                         |_Beatrice of PIAST _______|
|                           (1290 - 1322)            |
|                                                    |_Beatrice of ASCANIA __________+
|                                                      (1270 - 1316)                 
|
|--Frederick WITTELSBACH 
|  (1339 - 1393)
|                                                     _Peter III BARCELONA __________+
|                                                    | (1239 - 1285) m 1262          
|                          _Frederick III BARCELONA _|
|                         | (1272 - 1337)            |
|                         |                          |_Constance II of HOHENSTAUFEN _+
|                         |                            (1249 - 1302) m 1262          
|_Elisabeth of BARCELONA _|
  (1310 - 1349)           |
                          |                           _Charles II ANJOU-NAPLES ______+
                          |                          | (1254 - 1309)                 
                          |_Eleanor of ANJOU-NAPLES _|
                            (1289 - 1341)            |
                                                     |_Mary of ÁRPÁD ______________+
                                                       (1257 - 1323)