_Konrad I PIAST _____+
                                            | (1294 - 1366)       
                       _Konrad II PIAST ____|
                      | (1340 - 1403) m 1353|
                      |                     |_Euphemia of PIAST __+
                      |                       (1313 - 1377)       
 _Konrad III PIAST ___|
| (1359 - 1412) m 1380|
|                     |                      _Casimir I PIAST ____+
|                     |                     | (1280 - 1358)       
|                     |_Agnes of PIAST _____|
|                       (1338 - 1371) m 1353|
|                                           |_Euphemia of PIAST __+
|                                             (1312 - 1373)       
|
|--Hedwig of PIAST 
|  (1405 - 1454)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Judith of UNKNOWN __|
   m 1380             |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________