Boleslaus I, a member of the Přemyslid dynasty, was ruler of the Duchy of Bohemia from 935 to his death. He is notorious for the murder of his elder brother Wenceslaus, through which he became duke. Wikipedia
Born: Czechia
Died: 972 AD
Children: Boleslaus II, Duke of Bohemia, Mlada, Doubravka of Bohemia, and more
Spouse: Biagota
Grandchildren: Bolesław I the Brave, Oldřich, Duke of Bohemia, Boleslaus III, Duke of Bohemia, and more
Parents: Vratislaus I, Duke of Bohemia and Drahomíra
Full name: Boleslaus I