Events

• February 24 – Queen Margaret of Norway and Denmark defeats Albert of Sweden in battle and becomes ruler of all three kingdoms. Albert is taken prisoner.

• June 15 (June 28 by the Gregorian calendar) – Battle of Kosovo between Serbs and Ottomans: Both Emperor Murad I and the Serbian Prince Lazar are killed in battle.

• * Beyazid I (1389–1402) succeeds his father Murad I (1359–1389) as Ottoman Emperor.

• * Stefan III succeeds his father as ruler of Serbia.

• May 19 – Vasili I becomes Grand Prince of Moscow after the death of his father, Dmitri Donskoi.

• November 2 – Pope Boniface IX succeeds Pope Urban VI as the 203rd pope.

• Goryeo Revolution 1388–1392: King Chang of Goryeo is forced from power and replaced by King Gongyang. The ten year-old Chang and his predecessor, U, are both assassinated later in the year.

• Hadji II is restored as Mamluk Sultan of Egypt after overthrowing Sultan Barquq.

• Hundred Years' War: England and France sign a truce, ending the second phase of the war.

• Supported by Antipope John XXIII, Louis II overthrows the underage King Ladislas as King of Naples.

• Wikramawardhana succeeds Hayam Wuruk as ruler of the Majapahit Empire (now Indonesia).

• The unpopular Sultan Ghiyas-ud-Din Tughluq II of Delhi is murdered and succeeded by his brother, Abu Baker.

• Biri II succeeds Kade Alunu as King of the Kanem-Bornu Empire (now eastern Chad and Nigeria) and the Empire loses its land in present-day Chad to the Bilala.

• Sandaki overthrows Magha II as Mansa of the Mali Empire.

• Abd ar-Rahmân II succeeds Musa II as ruler of the Ziyanid Dynasty in present-day western Algeria.

• Abu Tashufin II succeeds his nephew, Abu Hammu II, as ruler of the Abdalwadid Dynasty in present-day eastern Algeria.

• Carmo Convent is built in Lisbon.

Births

• March 1 – Antoninus of Florence, Italian archbishop

• June 20 – John of Lancaster, 1st Duke of Bedford, regent of England (d. 1435)

• September 27 – Cosimo de' Medici, ruler of Florence (d. 1464)

• December 5 – Zbigniew Cardinal Oleśnicki, Polish bishop and statesman (d. 1455)

• December 24 – John VI, Duke of Brittany (d. 1442)

Deaths

• May 19 – Dmitri Donskoi, Grand Prince of Muscovy (b. 1350)

• June 15 (in the Battle of Kosovo)

• * Murad I, Ottoman Sultan (b. 1319)

• * Prince Lazar, Prince of Serbia (b. 1329)

• * Miloš Obilić, Serbian knight

• October 15 – Pope Urban VI (b. 1318)

• date unknown

• * Isabella, Countess of Fife (b. 1320)

• * Hayam Wuruk, ruler of the Majapahit Empire (b. 1334)

• * Former King Chang of Goryeo (assassinated)

• * Sultan Ghiyas-ud-Din Tughluq II of Delhi (murdered)