_John IV MECKLENBURG _______+
                                                     | (1370 - 1422)              
                          _Henry IV MECKLENBURG _____|
                         | (1417 - 1476)             |
                         |                           |_Catherine of ASCANIA ______+
                         |                             (.... - 1448)              
 _Magnus II MECKLENBURG _|
| (1441 - 1503)          |
|                        |                            _Frederick VI HOHENZOLLERN _+
|                        |                           | (1371 - 1440) m 1401       
|                        |_Dorothea of HOHENZOLLERN _|
|                          (1419 - 1490)             |
|                                                    |_Elisabeth of WITTELSBACH __+
|                                                      (1383 - 1441) m 1401       
|
|--Catherine of MECKLENBURG 
|  (1487 - 1561)
|                                                     _Wartislaw IX GRIFFIN ______+
|                                                    | (1400 - 1457)              
|                         _Eric II GRIFFIN __________|
|                        | (1418 - 1474)             |
|                        |                           |_Sophia of ASCANIA _________+
|                        |                             (.... - 1462)              
|_Sophia of GRIFFIN _____|
  (1460 - 1504)          |
                         |                            _Bogislaw IX GRIFFIN _______+
                         |                           | (1407 - 1446)              
                         |_Sophia of GRIFFIN ________|
                           (1435 - 1497)             |
                                                     |_Maria of PIAST ____________+
                                                       (1408 - 1453)