_Henry II REGINAR ___+
                                                          | (1207 - 1247)       
                                     _Henry I HESSE ______|
                                    | (1244 - 1308) m 1263|
                                    |                     |_Sophie of LUDOVING _+
                                    |                       (1223 - 1275)       
 _Otto I HESSE _____________________|
| (1272 - 1327) m 1297              |
|                                   |                      _Otto I WELF ________+
|                                   |                     | (1204 - 1252) m 1228
|                                   |_Adelaide of WELF ___|
|                                     (.... - 1274) m 1263|
|                                                         |_Matilda of ASCANIA _+
|                                                           (1210 - 1261) m 1228
|
|--Henry II HESSE 
|  (1299 - 1376)
|                                                          _____________________
|                                                         |                     
|                                    _____________________|
|                                   |                     |
|                                   |                     |_____________________
|                                   |                                           
|_Adelheid of CALVELAGE-RAVENSBERG _|
   m 1297                           |
                                    |                      _____________________
                                    |                     |                     
                                    |_____________________|
                                                          |
                                                          |_____________________