_Louis IV WITTELSBACH ____+
                                                          | (1282 - 1347)            
                            _Stephen II WITTELSBACH ______|
                           | (1319 - 1375)                |
                           |                              |_Beatrice of PIAST _______+
                           |                                (1290 - 1322)            
 _Stephen III WITTELSBACH _|
| (1337 - 1413)            |
|                          |                               _Frederick III BARCELONA _+
|                          |                              | (1272 - 1337)            
|                          |_Elisabeth of BARCELONA ______|
|                            (1310 - 1349)                |
|                                                         |_Eleanor of ANJOU-NAPLES _+
|                                                           (1289 - 1341)            
|
|--Isabeau of WITTELSBACH 
|  (1370 - 1435)
|                                                          __________________________
|                                                         |                          
|                           _Bernabò VISCONTI ___________|
|                          | (1323 - 1385)                |
|                          |                              |__________________________
|                          |                                                         
|_Taddea VISCONTI _________|
  (1351 - 1381)            |
                           |                               __________________________
                           |                              |                          
                           |_Beatrice Regina della SCALA _|
                             (1331 - 1384)                |
                                                          |__________________________