_Butvydas-Pukuveras GEDIMINID _+
                                              | (.... - 1294)                 
                        _Gediminas GEDIMINID _|
                       | (1275 - 1341)        |
                       |                      |_______________________________
                       |                                                      
 _Kęstutis GEDIMINID _|
| (1297 - 1382) m 1349 |
|                      |                       _______________________________
|                      |                      |                               
|                      |_Jewna of UNKNOWN ____|
|                                             |
|                                             |_______________________________
|                                                                             
|
|--Sigismund Kęstutaitis GEDIMINID 
|  (1364 - 1439)
|                                              _______________________________
|                                             |                               
|                       ______________________|
|                      |                      |
|                      |                      |_______________________________
|                      |                                                      
|_Birutė of UNKNOWN __|
  (1330 - 1382) m 1349 |
                       |                       _______________________________
                       |                      |                               
                       |______________________|
                                              |
                                              |_______________________________