Serene Highness
Before 1947, the style "His/Her Serene Highness" (Őfőméltósága, literally: "His/Her High Dignity") was in use in Hungary. Peers with the title of prince were entitled to it, and between 1920 and 1944 the regent, Miklós Horthy, was styled as His Serene Highness the Regent of the Kingdom of Hungary "(Őfőméltósága, a Magyar Királyság kormányzója)".