_Louis I WITTELSBACH ____+
                                                  | (1229 - 1293)           
                         _Louis IV WITTELSBACH ___|
                        | (1282 - 1347)           |
                        |                         |_Matilda of HABSBURG ____+
                        |                           (1253 - 1304)           
 _Albert I WITTELSBACH _|
| (1336 - 1404)         |
|                       |                          _William III AVESNES ____+
|                       |                         | (1286 - 1337)           
|                       |_Margaret II of AVESNES _|
|                         (1311 - 1356)           |
|                                                 |_Joan of VALOIS _________+
|                                                   (1294 - 1341)           
|
|--Margaret of WITTELSBACH 
|  (1363 - 1423)
|                                                  _Boleslaw III PIAST _____+
|                                                 | (1291 - 1352)           
|                        _Louis I PIAST __________|
|                       | (1321 - 1398) m 1341    |
|                       |                         |_Margaret of PŘEMYSLID _+
|                       |                           (1295 - 1322)           
|_Margaret of PIAST ____|
  (1342 - 1386)         |
                        |                          _Henry IV PIAST _________+
                        |                         | (1292 - 1341)           
                        |_Agnes of PIAST _________|
                          (1321 - 1362) m 1341    |
                                                  |_Matlida of ASCANIA _____+
                                                    (.... - 1323)