_Odon PIAST ____________+
                                            | (1149 - 1194)          
                       _Władysław PIAST __|
                      | (1190 - 1239)       |
                      |                     |_Viacheslava of HALYCH _+
                      |                                              
 _Przemysł I PIAST __|
| (1190 - 1257)       |
|                     |                      ________________________
|                     |                     |                        
|                     |_Hedwig of UNKNOWN __|
|                       (.... - 1249)       |
|                                           |________________________
|                                                                    
|
|--Constance of PIAST 
|  (1245 - 1281)
|                                            _Henry I PIAST _________+
|                                           | (1165 - 1237)          
|                      _Henry II PIAST _____|
|                     | (1196 - 1241)       |
|                     |                     |_Hedwig of ANDECHS _____+
|                     |                       (1174 - 1243)          
|_Elisabeth of PIAST _|
  (1232 - 1264)       |
                      |                      _Ottokar I PŘEMYSLID __+
                      |                     | (1155 - 1230)          
                      |_Anne of PŘEMYSLID _|
                        (1203 - 1265)       |
                                            |_Constance of ÁRPÁD __+
                                              (1180 - 1240)