The King of Hungary was the ruling head of state of the Kingdom of Hungary from 1000 to 1918. The style of title "Apostolic King of Hungary" was endorsed by Pope Clement XIII in 1758 and used afterwards by all monarchs of Hungary.
Crown Jewels of Hungary
The coronation of Leopold II at St. Martin's Cathedral in 1790, in Pozsony, site of Hungarian coronations between 1563 and 1830
The Kingdom of Hungary was a monarchy in Central Europe that existed for nearly a millennium, from the Middle Ages into the 20th century. The Principality of Hungary emerged as a Christian kingdom upon the coronation of the first king Stephen I at Esztergom around the year 1000; his family led the monarchy for 300 years. By the 12th century, the kingdom became a European power.
King Stephen I of Hungary
The Holy Crown of Hungary along with other regalia
Hungary (including Croatia) in 1190, during the rule of Béla III
The Meeting of Ladislaus IV and Rudolf I during the Battle on the Marchfeld, painting by Mór Than (1873)