_Henry I PIAST _________+
                                             | (1165 - 1237)          
                       _Henry II PIAST ______|
                      | (1196 - 1241)        |
                      |                      |_Hedwig of ANDECHS _____+
                      |                        (1174 - 1243)          
 _Bolesław II PIAST _|
| (1220 - 1278)       |
|                     |                       _Ottokar I PŘEMYSLID __+
|                     |                      | (1155 - 1230)          
|                     |_Anne of PŘEMYSLID __|
|                       (1203 - 1265)        |
|                                            |_Constance of ÁRPÁD __+
|                                              (1180 - 1240)          
|
|--Bolko I PIAST 
|  (1252 - 1301)
|                                             _Bernard III ASCANIA ___+
|                                            | (1134 - 1211) m 1173   
|                      _Henry I ASCANIA _____|
|                     | (1170 - 1252)        |
|                     |                      |_Judith of PIAST _______+
|                     |                        (1154 - 1201) m 1173   
|_Hedwig of ASCANIA __|
  (.... - 1259)       |
                      |                       _Hermann I LUDOVING ____+
                      |                      | (1165 - 1217)          
                      |_Irmgard of LUDOVING _|
                        (1197 - 1244)        |
                                             |_Sophia of WITTELSBACH _+
                                               (1170 - 1238)