_John II MECKLENBURG __+
                                                      | (1250 - 1337)         
                           _Nicholas III MECKLENBURG _|
                          | (1311 - 1360) m 1337      |
                          |                           |_Mechtild of WELF _____+
                          |                             (1295 - 1343)         
 _Lorenz MECKLENBURG _____|
| (1338 - 1394)           |
|                         |                            _Henry II MECKLENBURG _+
|                         |                           | (1266 - 1328) m 1315  
|                         |_Agnes of MECKLENBURG _____|
|                           (1320 - 1340) m 1337      |
|                                                     |_Anna of ASCANIA ______+
|                                                       (.... - 1327) m 1315  
|
|--William MECKLENBURG 
|  (1393 - 1436)
|                                                      _John III MECKLENBURG _+
|                                                     | (1300 - 1352)         
|                          _Nicholas IV MECKLENBURG __|
|                         | (1331 - 1354)             |
|                         |                           |_Matilda of GRIFFIN ___+
|                         |                             (.... - 1361)         
|_Matilda of MECKLENBURG _|
  (.... - 1402)           |
                          |                            _______________________
                          |                           |                       
                          |_Agnes of LINDOW-RUPPIN ___|
                            (.... - 1361)             |
                                                      |_______________________