_Henry II MECKLENBURG _________+
                                                         | (1266 - 1328) m 1315          
                           _John I MECKLENBURG __________|
                          | (1326 - 1392)                |
                          |                              |_Anna of ASCANIA ______________+
                          |                                (.... - 1327) m 1315          
 _John II MECKLENBURG ____|
| (1370 - ....)           |
|                         |                               _______________________________
|                         |                              |                               
|                         |_Agnes of LINDOW-RUPPIN ______|
|                           (.... - 1361)                |
|                                                        |_______________________________
|                                                                                        
|
|--John III MECKLENBURG 
|  (1389 - 1438)
|                                                         _Gediminas GEDIMINID __________+
|                                                        | (1275 - 1341)                 
|                          _Algirdas GEDIMINID __________|
|                         | (1296 - 1377)                |
|                         |                              |_Jewna of UNKNOWN _____________
|                         |                                                              
|_Catherine of GEDIMINID _|
  (1350 - 1422)           |
                          |                               _Alexander Mikhaylovich RURIK _+
                          |                              | (1301 - 1339)                 
                          |_Uliana Alexndrovna of RURIK _|
                            (1325 - 1390)                |
                                                         |_Anastasia of HALYCH __________