_Albert II MECKLENBURG _+
                                                | (1318 - 1378)          
                         _Magnus I MECKLENBURG _|
                        | (1345 - 1384) m 1362  |
                        |                       |_Euphemia of BJÄLBO ___+
                        |                         (1317 - 1370)          
 _John IV MECKLENBURG __|
| (1370 - 1422)         |
|                       |                        _Barnim IV GRIFFIN _____+
|                       |                       | (1325 - 1365)          
|                       |_Elizabeth of GRIFFIN _|
|                          m 1362               |
|                                               |_Sophie of WERLE _______
|                                                                        
|
|--John V MECKLENBURG 
|  
|                                                _Eric II ASCANIA _______+
|                                               | (1318 - 1368) m 1342   
|                        _Eric IV ASCANIA ______|
|                       | (1354 - 1411)         |
|                       |                       |_Agnes of SCHAUENBURG __
|                       |                         (.... - 1386) m 1342   
|_Catherine of ASCANIA _|
  (.... - 1448)         |
                        |                        _Magnus II WELF ________+
                        |                       | (1324 - 1373) m 1356   
                        |_Sophia of WELF _______|
                          (1358 - 1416)         |
                                                |_Catherine of ASCANIA __+
                                                  (1330 - 1389) m 1356