1911 Encyclopædia Britannica/Apostolic Majesty
APOSTOLIC MAJESTY, a title borne by the kings of Hungary. About A.D. 1000 it was conferred by Pope Silvester II. upon St Stephen (975–1038), the first Christian king of Hungary, in return for his zeal in seeking the conversion of the heathen. It was renewed by Pope Clement XIII. in 1758 in favour of the empress Maria Theresa and her descendants. The emperor of Austria bears the title of apostolic king of Hungary.