| Kazimierz I zu Oppeln Ratibor |
| Kazimierz I zu Oppeln Ratibor | |
| B: | 1176 |
| Oppeln, Cuxhaven, Niedersachsen, Germany | |
| D: | 13 May 1230 |
| Opole, Opolskie, Poland | |
| Viola Asen de Bulgarie Princess of Bulgaria | |
| B: | 1182 |
| Tirnovo, Burgas, Bulgaria | |
| M: | 1212 |
| Opole, Lodzkie, Poland | |
| D: | 7 Sep 1251 |
| Opole, Opolskie, Poland | |
| Ludmila of Silesia (maid. name Princess) |
| Ludmila of Silesia (maid. name Princess) | |
| B: | 1150 |
| Wroclaw, Dolnoslaskie, Poland | |
| D: | 20 Sep 1211 |
| Mieszko IV Piast |
| Mieszko IV Piast | |
| B: | Abt 1138 |
| Wroclaw, Wroclaw, Poland | |
| D: | 16 May 1211 |
| Kraków, Malopolskie, Poland | |