_Otto I ASCANIA _______+
                                                       | (1128 - 1184)         
                           _Albert II ASCANIA _________|
                          | (1177 - 1219) m 1205       |
                          |                            |_Ada of HOLLAND _______+
                          |                              (1163 - 1205)         
 _Otto III ASCANIA _______|
| (1215 - 1267)           |
|                         |                             _Conrad II WETTIN _____+
|                         |                            | (1159 - 1210)         
|                         |_Matilda of WETTIN _________|
|                           (1185 - 1225) m 1205       |
|                                                      |_Elizabeth of PIAST ___+
|                                                        (1152 - 1209)         
|
|--Otto V ASCANIA 
|  (1246 - 1298)
|                                                       _Ottokar I PŘEMYSLID _+
|                                                      | (1155 - 1230)         
|                          _Wenceslaus I PŘEMYSLID ___|
|                         | (1205 - 1253)              |
|                         |                            |_Constance of ÁRPÁD _+
|                         |                              (1180 - 1240)         
|_Beatrice of PŘEMYSLID _|
  (1225 - 1290)           |
                          |                             _Philip HOHENSTAUFEN __+
                          |                            | (1177 - 1208)         
                          |_Kunigunde of HOHENSTAUFEN _|
                            (1201 - 1248)              |
                                                       |_Irene ANGELOS ________+
                                                         (1181 - 1181)