_Władysław PIAST ______+
                                            | (1225 - 1282)           
                       _Bolko I PIAST ______|
                      | (1258 - 1313)       |
                      |                     |_Euphemia of PIAST ______+
                      |                       (1230 - 1280)           
 _Bolko II PIAST _____|
| (1300 - 1356)       |
|                     |                      _Otto III ASCANIA _______+
|                     |                     | (1215 - 1267)           
|                     |_Agnes of ASCANIA ___|
|                                           |
|                                           |_Beatrice of PŘEMYSLID _+
|                                             (1225 - 1290)           
|
|--Bolko III PIAST 
|  (1337 - 1382)
|                                            _Bolko I PIAST __________+
|                                           | (1252 - 1301)           
|                      _Bernard PIAST ______|
|                     | (1291 - 1326)       |
|                     |                     |_Beatrice of ASCANIA ____+
|                     |                       (1270 - 1316)           
|_Elisabeth of PIAST _|
                      |
                      |                      _Władysław I PIAST ____+
                      |                     | (1261 - 1332)           
                      |_Kunigunde of PIAST _|
                        (1298 - 1331)       |
                                            |_Jadwiga of PIAST _______+
                                              (1266 - 1339)