_Albert II HABSBURG __________+
                                                 | (1298 - 1358)                
                          _Leopold III HABSBURG _|
                         | (1351 - 1386)         |
                         |                       |_Joanna OF SCARPONNOIS _______
                         |                         (1300 - 1351)                
 _Frederick IV HABSBURG _|
| (1382 - 1439) m 1411   |
|                        |                        _Bernabò VISCONTI ___________
|                        |                       | (1323 - 1385)                
|                        |_Viridis VISCONTI _____|
|                          (1352 - 1413)         |
|                                                |_Beatrice Regina della SCALA _
|                                                  (1331 - 1384)                
|
|--Sigismund HABSBURG 
|  (1427 - 1495)
|                                                 _Magnus II WELF ______________+
|                                                | (1324 - 1373) m 1356         
|                         _Frederick I WELF _____|
|                        | (1357 - 1400) m 1386  |
|                        |                       |_Catherine of ASCANIA ________+
|                        |                         (1330 - 1389) m 1356         
|_Anna of WELF __________|
  (.... - 1432) m 1411   |
                         |                        _Wencelas I ASCANIA __________+
                         |                       | (1337 - 1388)                
                         |_Anna of ASCANIA ______|
                           (.... - 1426) m 1386  |
                                                 |_Cecilia of CARRARA __________