1379

Events 
 September 9 – Treaty of Neuberg signed, splitting the Austrian Habsburg lands between brothers Albert III and Leopold III. Albert III retains the title of Duke of Austria.
 The Venetians and Ottomans invade Constantinople and restore John V Palaiologos as Byzantine co-emperor. Andronikos IV Palaiologos is allowed to remain as Byzantine co-emperor but is confined to the city of Silivri for the remainder of his life.
 John I succeeds his father, Henry II, as King of Castile and King of León.
 Bairam Khawaja establishes the independent principality of the Turkomans of the Black Sheep Empire in present-day Armenia.
 Dmitri Donskoi of Moscow raids Estonia.
 Foundation of New College, Oxford.
 Foundation of Wisbech Grammar School in England.

 Births 
 October 4 – King Henry III of Castile (died 1406)
 Ferdinand I of Aragon (died 1416)
 Joan Beaufort, Countess of Westmoreland (approximate date; died 1440)

 Deaths 
 February 18 – Albert II of Mecklenburg
 May 29 – King Henry II of Castile (born 1334)
 December 16 – John Fitzalan, Marshal of England (drowned)
 Aqsara'i, Persian physician