_Henry II PIAST _________+
                                             | (1196 - 1241)           
                        _Bolesław II PIAST _|
                       | (1220 - 1278)       |
                       |                     |_Anne of PŘEMYSLID _____+
                       |                       (1203 - 1265)           
 _Bolko I PIAST _______|
| (1252 - 1301)        |
|                      |                      _Henry I ASCANIA ________+
|                      |                     | (1170 - 1252)           
|                      |_Hedwig of ASCANIA __|
|                        (.... - 1259)       |
|                                            |_Irmgard of LUDOVING ____+
|                                              (1197 - 1244)           
|
|--Beatrice of PIAST 
|  (1290 - 1322)
|                                             _Otto III ASCANIA _______+
|                                            | (1215 - 1267)           
|                       _Otto V ASCANIA _____|
|                      | (1246 - 1298)       |
|                      |                     |_Beatrice of PŘEMYSLID _+
|                      |                       (1225 - 1290)           
|_Beatrice of ASCANIA _|
  (1270 - 1316)        |
                       |                      _Herman I HENNEBERG _____+
                       |                     | (1224 - 1290) m 1249    
                       |_Jutta of HENNEBERG _|
                         (.... - 1295)       |
                                             |_Margaret of HOLLAND ____+
                                               (1234 - 1276) m 1249