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|1379 by topic|
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|Establishments – Disestablishments|
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- May 29 – John I succeeds his father, Henry II, as King of Castile and King of León.
- September 9 – The Treaty of Neuberg is 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.
- Bairam Khawaja establishes the independent principality of the Turkomans of the Black Sheep Empire, in present day Armenia.
- Dmitri Donskoi of Moscow raids Estonia.
- New College, Oxford is founded in England.
- Wisbech Grammar School is founded in England.
- October 4 – King Henry III of Castile (d. 1406)
- date unknown – Jerome of Prague, Hussite (d. 1416)
- February 18 – Albert II of Mecklenburg (b. c. 1318)
- May 29 – King Henry II of Castile (b. 1334)
- November 15 – Otto V, Duke of Bavaria (b. 1346)
- December 16 – John Fitzalan, Marshal of England (drowned)
- date unknown – Aqsara'i, Persian physician