Information: - Vratislaus ( or Wratislaus ) II ( Czech : Vratislav II. ) ( d. 14 January 1092 ) , the son of Bretislaus I and Judith of Schweinfurt , was the first King of Bohemia as of 15 June 1085 . The royal title was merely a lifetime grant from Holy Roman Emperor Henry IV , however , and was not hereditary . Before being raised to the royal dignity , he had ruled Bohemia as duke since 1061 . On his father 's death in 1055 , Vratislaus became duke of Olomouc . He fell out with his brother Spytihnv II and was exiled to Hungary . Vratislaus regained his Moravian ducal throne with Hungarian assistance and eventually reconciled with his brother and succeeded him as duke of Bohemia . - Bretislav I (1002/100510 January 1055), known as the "Bohemian Achilles", of the Pemyslid dynasty, was Duke of Bohemia from 1035 until his death. - Schweinfurt (in German literally 'swine ford'; East Franconian: "Schweifadd") is a city in the Lower Franconia region of Bavaria in Germany on the right bank of the navigable Main River, which is spanned by several bridges here, 27km northeast of Wurzburg. - Judith of Schweinfurt (before 1003 2 August 1058) was Duchess consort of Bohemia from 1034 until 1055, by her marriage with the Pemyslid duke Bretislav I. Given the information, choose the subject and object entities that have the relation of 'date of birth'.
vratislaus ii of bohemia , 1035