- May 23 Jews of Syria and Austria expelled
- May 25 Henry the Navigator is appointed governor of the Order of Christ
- Jun 7 Troops of the Republic of Venice capture Udine, ending the independence of the Patriarchate of Aquileia
- Jul 14 Battle at Vitkov Zizka's hill (Prague): Taboriets beat Bohemia
- Aug 5 Duke John VI of Bavaria visits Dutch mystic Lidwina (Christ's bride)
Florence Cathedral
Aug 7 Construction begins on the dome of Florence Cathedral, designed by Renaissance architect Filippo Brunelleschi