_Henry Borwin II MECKLENBURG _+
                                                 | (1170 - 1226)                
                         _John I MECKLENBURG ____|
                        | (1211 - 1264) m 1229   |
                        |                        |_Christina of SVERKER ________+
                        |                          (.... - 1248)                
 _Henry I MECKLENBURG __|
| (1230 - 1301) m 1259  |
|                       |                         _Poppo VII HENNEBERG _________+
|                       |                        | (1215 - 1267)                
|                       |_Luitgard of HENNEBERG _|
|                         (1210 - 1267) m 1229   |
|                                                |_Elisabeth of WILDBERG _______
|                                                  (.... - 1220)                
|
|--Ludgarda of MECKLENBURG 
|  (1260 - 1283)
|                                                 _Bogislaw II GRIFFIN _________+
|                                                | (1177 - 1219)                
|                        _Barnim I GRIFFIN ______|
|                       | (1217 - 1278) m 1238   |
|                       |                        |_Miroslawa of SOBIESLAW ______
|                       |                                                       
|_Anastasia of GRIFFIN _|
  (1245 - 1316) m 1259  |
                        |                         _William WELF ________________+
                        |                        | (1184 - 1213)                
                        |_Marianne of WELF ______|
                          (.... - 1252) m 1238   |
                                                 |_Helena of ESTRIDSEN _________+
                                                   (1180 - 1233)