May 17 - King John I of Castile and Leon marries Beatrice of Portugal
July 7 - Death of the childless James of Baux, ruler of Taranto and Achaea and titular Latin Emperor.
Charles III of Naples becomes ruler of Achaea (now southern Greece).
Otto, the widower of Joan I of Naples, becomes ruler of Taranto (now eastern Italy).
Duke Louis I of Anjou inherits the claim to the Latin Empire (now western Turkey) but never uses the title of Emperor.
October 22 - King Fernando I of Portugal dies and is succeeded by his daughter, Beatrice of Portugal. A period of civil war and anarchy, known as the 1383-1385 Crisis, begins in Portugal due to Beatrice being married to the King John I of Castile and Leon.