333 - Roman Emperor Constantine the Great elevates his youngest son Constans to the rank of Caesar.
350 - Vetranio meets Constantius II at Naissus (Serbia) and is forced to abdicate his title (Caesar). Constantius allows him to live as a private citizen on a state pension.
496 - Clovis I, king of the Franks, is baptized into the Catholic faith at Reims, by Saint Remigius.
800 - Coronation of Charlemagne as Holy Roman Emperor, in Rome.
1000 - The foundation of the Kingdom of Hungary: Hungary is established as a Christian kingdom by Stephen I of Hungary.
1025 - Coronation of Mieszko II Lambert as King of Poland
1066 - William the Conqueror, Duke of Normandy is crowned king of England, at Westminster Abbey, London.
1076 - Coronation of Bolesław II the Generous as king of Poland.
1100 - Baldwin of Boulogne is crowned the first King of Jerusalem in the Church of the Nativity.
1130 - Count Roger II of Sicily is crowned the first King of Sicily.
1261 - John IV Laskaris of the restored Eastern Roman Empire is deposed and blinded by orders of his co-ruler Michael VIII Palaiologos.
1926 - Emperor Taishō of Japan dies. His son, Prince Hirohito, succeeds him as Emperor Shōwa.
1950 - The Stone of Scone, traditional coronation stone of British monarchs, is taken from Westminster Abbey by Scottish nationalist students. It later turns up in Scotland on April 11, 1951.
