_Boŕivoj I PŘEMYSLID _
                                                     | (0852 - 0889) m 0873   
                           _Vratislaus I PŘEMYSLID _|
                          | (0888 - 0920) m 0906     |
                          |                          |_Ludmila of BOHEMIA ____
                          |                            (0860 - 0921) m 0873   
 _Boleslaus I PŘEMYSLID _|
| (0915 - 0967)           |
|                         |                           ________________________
|                         |                          |                        
|                         |_Drahomíra of STODOR ____|
|                            m 0906                  |
|                                                    |________________________
|                                                                             
|
|--Boleslaus II PPŘEMYSLID 
|  (0930 - 0998)
|                                                     ________________________
|                                                    |                        
|                          __________________________|
|                         |                          |
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|                         |                                                   
|_Biagota of UNKNOWN _____|
  (0901 - ....)           |
                          |                           ________________________
                          |                          |                        
                          |__________________________|
                                                     |
                                                     |________________________