Major Events
- May 20 Rienzo calls Rome for people's tribunal
- Jul 1 Engagement of Count Louis of Male to Margaretha, daughter of Jan III
- Jul 11 Heir to the Bohemian throne elected German anti-king Charles IV
- Aug 4 English troops under Edward III conquer Calais, becomes strategic town for the English during Hundred Years' War
- Nov 20 Cola di Rienzo, later Roman Tribunal, addresses a meeting of on the Capitol during people's revolt in Rome
- Dec 3 Pope Clemens VI declares Roman tribunal Cola di Rienzo as heretics
Born in 1347
- Mar 25 Catherine of Siena, Italian saint (d. 1380)
- Jul 28 Margherita of Durazzo, queen of Naples (d. 1412)
Who Died in 1347
- Jun 30 John de Warenne, 7th Earl of Surrey, English politician and the last Warenne earl of Surrey, dies at 61
- Oct 11 Ludwig IV, Duke of Bavaria (1301-47), King of the Romans (1314-47) and Holy Roman Emperor (1328-47), dies at 65
Edward III