The so-called
Golden Bull of Sicily was a decree issued by the
Roman king and emperor
Frederick II in
Basel on
26 September 1212 that certified hereditary royal title for
Otakar I of Bohemia and his successors and determined the rights and the duties of the Bohemian monarchs (the
Kings of Bohemia). By this act Frederick II also declared that he and the Empire will give the investiture for Bohemia only to a ruler approved by the people of the country.