_John I MECKLENBURG ______+
                                                    | (1245 - 1283)            
                             _John II MECKLENBURG __|
                            | (1250 - 1337)         |
                            |                       |_Sophia of LINDOW-RUPPIN _
                            |                                                  
 _Nicholas III MECKLENBURG _|
| (1311 - 1360) m 1337      |
|                           |                        _Henry I WELF ____________+
|                           |                       | (1267 - 1322) m 1282     
|                           |_Mechtild of WELF _____|
|                             (1295 - 1343)         |
|                                                   |_Agnes of WETTIN _________+
|                                                     (1264 - 1332) m 1282     
|
|--Lorenz MECKLENBURG 
|  (1338 - 1394)
|                                                    _Henry I MECKLENBURG _____+
|                                                   | (1230 - 1301) m 1259     
|                            _Henry II MECKLENBURG _|
|                           | (1266 - 1328) m 1315  |
|                           |                       |_Anastasia of GRIFFIN ____+
|                           |                         (1245 - 1316) m 1259     
|_Agnes of MECKLENBURG _____|
  (1320 - 1340) m 1337      |
                            |                        _Albert II ASCANIA _______+
                            |                       | (1250 - 1298)            
                            |_Anna of ASCANIA ______|
                              (.... - 1327) m 1315  |
                                                    |_Agnes of HABSBURG _______+
                                                      (1257 - 1322)