_Frederick I PIAST ________+
                                                               | (1446 - 1488)             
                                      _Frederick II PIAST _____|
                                     | (1479 - 1547) m 1518    |
                                     |                         |_Ludmila of PODĔBRADY ____+
                                     |                           (1456 - 1502)             
 _Frederick III PIAST _______________|
| (1519 - 1570) m 1537               |
|                                    |                          _Frederick I HOHENZOLLERN _+
|                                    |                         | (1460 - 1536)             
|                                    |_Sophie of HOHENZOLLERN _|
|                                      (1484 - 1537) m 1518    |
|                                                              |_Sophia of JAGIEŁŁO _____+
|                                                                (1464 - 1512)             
|
|--Frederick IV PIAST 
|  (1552 - 1596)
|                                                               _Magnus II MECKLENBURG ____+
|                                                              | (1441 - 1503)             
|                                     _Henry V MECKLENBURG ____|
|                                    | (1479 - 1551) m 1513    |
|                                    |                         |_Sophia of GRIFFIN ________+
|                                    |                           (1460 - 1504)             
|_Katharina of MECKLENBURG-SCHWERIN _|
  (1518 - 1586) m 1537               |
                                     |                          _Philip WITTELSBACH _______+
                                     |                         | (1448 - 1507)             
                                     |_Helen of WITTELSBACH ___|
                                       (1492 - 1524) m 1513    |
                                                               |_Margaret of WITTELSBACH __+
                                                                 (1456 - 1500)