_Mieszko I PIAST _________+
                                                | (1252 - 1315)            
                           _Casimir I PIAST ____|
                          | (1280 - 1358)       |
                          |                     |__________________________
                          |                                                
 _Bolesław PIAST ________|
| (1330 - 1355)           |
|                         |                      _Trojden I PIAST _________+
|                         |                     | (1284 - 1340)            
|                         |_Euphemia of PIAST __|
|                           (1312 - 1373)       |
|                                               |_Maria Yurievna of RURIK _+
|                                                 (1293 - 1340)            
|
|--Elisabeth of PIAST 
|  (1347 - 1374)
|                                                __________________________
|                                               |                          
|                          _____________________|
|                         |                     |
|                         |                     |__________________________
|                         |                                                
|_Margareta of STERNBERG _|
                          |
                          |                      __________________________
                          |                     |                          
                          |_____________________|
                                                |
                                                |__________________________