The Holy Crown of Hungary (Hungarian: Szent Korona, also known as the Crown of Saint Stephen) was the coronation crown used by the Kingdom of Hungary for most of its existence; kings have been crowned with it since the twelfth century. The Crown was bound to the Lands of the Hungarian Crown (sometimes the Sacra Corona meant the Land, the Carpathian Basin, but it also meant the coronation body, too). No king of Hungary was regarded as having been truly legitimate without being crowned with it. In the history of Hungary, more than fifty kings were crowned with it, up to the last, Charles IV, in 1916 (the two kings who were not so crowned were John II Sigismund and Joseph II).
The enamels on the crown are mainly or entirely Byzantine work, presumed to have been made in Constantinople in the 1070s. The crown was presented by the Byzantine Emperor Michael VII Doukas to King Géza I of Hungary; both are depicted and named in Greek on enamel plaques in the lower crown. It is one of the two known Byzantine crowns to survive, the other being the slightly earlier Monomachus Crown, which is also in Budapest, in the Hungarian National Museum. However, the Monomachus Crown may have had another function, and the Holy Crown has probably been remodelled, and uses elements of different origins. The date assigned to the present configuration of the Holy Crown varies, but is most commonly put around the late 12th century. The Hungarian coronation insignia consists of the Holy Crown, the sceptre, the orb, and the mantle. The orb has the coat-of-arms of Charles I of Hungary (1310–1342). In popular tradition the Holy Crown was thought to be older, dating to the time of the first King Stephen I of Hungary, crowned in 1000/1001.