_Casimir I PIAST ___________+
                                                | (1179 - 1230)              
                       _Władysław PIAST ______|
                      | (1225 - 1282)           |
                      |                         |_Viola of UNKNOWN __________
                      |                                                      
 _Bolko I PIAST ______|
| (1258 - 1313)       |
|                     |                          _Władysław PIAST _________+
|                     |                         | (1190 - 1239)              
|                     |_Euphemia of PIAST ______|
|                       (1230 - 1280)           |
|                                               |_Hedwig of UNKNOWN _________
|                                                 (.... - 1249)              
|
|--Bolko II PIAST 
|  (1300 - 1356)
|                                                _Albert II ASCANIA _________+
|                                               | (1177 - 1219) m 1205       
|                      _Otto III ASCANIA _______|
|                     | (1215 - 1267)           |
|                     |                         |_Matilda of WETTIN _________+
|                     |                           (1185 - 1225) m 1205       
|_Agnes of ASCANIA ___|
                      |
                      |                          _Wenceslaus I PŘEMYSLID ___+
                      |                         | (1205 - 1253)              
                      |_Beatrice of PŘEMYSLID _|
                        (1225 - 1290)           |
                                                |_Kunigunde of HOHENSTAUFEN _+
                                                  (1201 - 1248)