_Lestek PIAST _______+
                                             | (0870 - 0930)       
                        _Siemomysł PIAST ___|
                       | (.... - 0950)       |
                       |                     |_____________________
                       |                                           
 _Mieszko I PIAST _____|
| (0930 - 0992)        |
|                      |                      _____________________
|                      |                     |                     
|                      |_____________________|
|                                            |
|                                            |_____________________
|                                                                  
|
|--Świętopełk Mieszkowic PIAST 
|  (0980 - 0991)
|                                             _____________________
|                                            |                     
|                       _____________________|
|                      |                     |
|                      |                     |_____________________
|                      |                                           
|_Oda of HALDENSLEBEN _|
  (0955 - 1023)        |
                       |                      _____________________
                       |                     |                     
                       |_____________________|
                                             |
                                             |_____________________