Střezislava Czech princess (0950–0987) Parents Vratislaus I, Duke of Bohemia Boleslaus I, Duke of Bohemia Children Adalbert of Prague Čáslav Spytimír Dobroslav Pořej Soběslav Siblings Pribyslava Saint Wenceslaus I, Duke of Bohemia Spytihněv Strachkvas Boleslaus II, Duke of Bohemia Vladivoj, Duke of Bohemia Vok Mlada Doubravka of Bohemia Partners Slavník