_Władysław II PIAST _+
                                            | (1105 - 1159)         
                       _Mieszko IV PIAST ___|
                      | (1130 - 1211)       |
                      |                     |_Agnes of BABENBERG ___+
                      |                       (1108 - 1162)         
 _Casimir I PIAST ____|
| (1179 - 1230)       |
|                     |                      _______________________
|                     |                     |                       
|                     |_Ludmila of UNKNOWN _|
|                                           |
|                                           |_______________________
|                                                                   
|
|--Euphrosyne of PIAST 
|  (1228 - 1292)
|                                            _______________________
|                                           |                       
|                      _____________________|
|                     |                     |
|                     |                     |_______________________
|                     |                                             
|_Viola of UNKNOWN ___|
                      |
                      |                      _______________________
                      |                     |                       
                      |_____________________|
                                            |
                                            |_______________________