_Otto I GRIFFINS __________+
                                                 | (1279 - 1344) m 1296      
                           _Barnim III GRIFFINS _|
                          | (1300 - 1368)        |
                          |                      |_Elizabeth of SCHAUENBURG _
                          |                        (1282 - 1318) m 1296      
 _Swantibor III GRIFFINS _|
| (1351 - 1413) m 1374    |
|                         |                       _Henry II WELF ____________+
|                         |                      | (1296 - 1351)             
|                         |_Agnes of WELF _______|
|                           (1318 - 1371)        |
|                                                |___________________________
|                                                                            
|
|--Casimir V GRIFFINS 
|  (1380 - 1435)
|                                                 ___________________________
|                                                |                           
|                          ______________________|
|                         |                      |
|                         |                      |___________________________
|                         |                                                  
|_Anna of HOHENZOLLERN ___|
   m 1374                 |
                          |                       ___________________________
                          |                      |                           
                          |______________________|
                                                 |
                                                 |___________________________