Events

• June 1 - Battle of San Romano - Florence defeats Siena
• foundation of Université de Caen
• In the end of the Hook and Cod wars, Jacqueline, Countess of Hainaut and Holland is forced by Philip the Good, Duke of Burgundy, to abdicate all her estates in his favour; end of Hainaut and Holland as independent counties

Births

• January 15 - King Afonso V of Portugal († 1481)
• March 30 - Mehmed II, later Sultan of the Ottoman Empire († 1481).
• Pope Innocent VIII († 1492)

Deaths

• May 5 - Francesco Bussone da Carmagnola, Italian soldier of fortune (executed)
• Janus of Cyprus