312 – Constantine the Great enters Rome after his victory at the Milvian Bridge, stages a grand adventus in the city, and is met with popular jubilation. Maxentius’ body is fished out of the Tiber and beheaded.
437 – Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II, Eastern Roman Emperor in Constantinople unifying the two branches of the House of Theodosius.
1268 – Conradin, the last legitimate male heir of the Hohenstaufen dynasty of Holy Roman Emperors, is executed along with his companion Frederick I, Margrave of Baden by Charles I of Sicily, a political rival and ally to the hostile Roman Catholic church.
1422 – Charles VII of France becomes king in succession to his father Charles VI of France.
1618 – English adventurer, writer, and courtier Sir Walter Raleigh is beheaded for allegedly conspiring against James I of England.
1922 – The King of Italy, Victor Emmanuel III, appoints Benito Mussolini as Prime Minister.
1017 – Henry III, Holy Roman Emperor (d. 1056)
1875 – Queen Marie of Romania (d. 1938)
1038 – Aethelnoth, Archbishop of Canterbury
1138 – Bolesław III Krzywousty, Duke of Poland (b. 1086)
1268 – Conradin, Duke of Swabia (b. 1252)
1268 – Frederick I, Margrave of Baden (b. 1249)
1321 – Stephen Uroš II, King of Serbia (b. 1253)
1950 – King Gustaf V of Sweden (b. 1858)