1339

January–December

• June - Battle of Laupen: The Canton of Bern defeats the forces of Fribourg.
• September 18 - Emperor Go-Murakami accedes to the throne of Japan.
• September 24 - Simone Boccanegra is elected, as the first Doge of Genoa.

  Date unknown

• Shams-ud-Din Shah Mir, having defeated Kota Rani, Hindu queen regnant of Kashmir, in battle at Jayapur, asks her to marry him, but she commits suicide rather than do so; thus he takes over sole rule of Kashmir, beginning the Muslim Sayyid Dynasty.
• All streets in the city of Florence are paved, the first European city in post-Roman times where this has happened.
• The Moscow Kremlin is first referred to as a kremlin.
• The weak Black Death epidemic spreads through the southern parts of Asia.

  Births

• July 23 - Louis I, Duke of Anjou
• November 1 - Rudolf IV, Duke of Austria
• date unknown
• * Pope Alexander V, Antipope
• * Erik Magnusson, king of parts of Sweden 1356-1359
• * Frederick, Duke of Bavaria-Landshut
• * Pope Innocent VII
• * John IV, Duke of Brittany
• * Juana Manuel of Castile, queen consort of Castile
• * Ali ibn Mohammed al-Jurjani, Persian Arab encyclopaedist

  Deaths

• February 17 - Otto, Duke of Austria
• May 26 - Aldona Ona, Queen of Poland
• August 16 - Azzone Visconti, founder of the state of Milan
• August 25 - Henry de Cobham, 1st Baron Cobham
• September 1 - Henry XIV, Duke of Bavaria
• September 19 - Emperor Go-Daigo of Japan
• October 29 - Grand Prince Aleksandr Mikhailovich of Tver