1391

• June 6 – Massacre of 1391: Anti-Jewish pogroms erupt in Seville, Spain.{{cite book |last1=Freund |first1=Scarlett |title=Jewish-Christian Encounters Over the Centuries: Symbiosis, Prejudice, Holocaust, Dialogue |last2=Ruiz |date=1994 |publisher=P. Lang |isbn=978-0-8204-2082-0 |editor1-last=Perry |editor1-first=Marvin |pages=169–195 |chapter=Jews, Conversos, and the Inquisition in Spain, 1391–1492: The Ambiguities of History |editor2-last=Schweitzer |editor2-first=Frederick M.}} Many thousands of Jews are massacred, and the violence spreads throughout Spain and Portugal, especially to Toledo, Barcelona and Mallorca. This event marks a turning-point in the history of the Spanish Jews, with most of the survivors leaving the Iberian Peninsula or being forced to convert.
• July 18 – Tokhtamysh–Timur war – Battle of the Kondurcha River: Timur defeats Tokhtamysh of the Golden Horde, in present day southeast Russia.{{Cite book |last=Tucker |first=Spencer C. |url=https://books.google.com/books?id=h5_tSnygvbIC |title=A Global Chronology of Conflict: From the Ancient World to the Modern Middle East [6 volumes]: From the Ancient World to the Modern Middle East |date=2009-12-23 |publisher=ABC-CLIO |isbn=978-1-85109-672-5 |pages=428 |language=en}}

• Manuel II Palaiologos becomes Byzantine emperor after his father, John V Palaiologos, dies of a nervous breakdown, due to his continued humiliation by the Ottoman Empire.{{Cite book |last=Barker |first=John W. |url=https://www.worldcat.org/oclc/11370 |title=Manuel II Palaeologus (1391-1425); a study in late Byzantine statesmanship |date=1969 |publisher=Rutgers University Press |isbn=0-8135-0582-8 |location=New Brunswick, N.J. |pages=xxiv |oclc=11370}}
• Yusuf II succeeds Muhammed V, as Nasrid Sultan of Granada (now southern Spain).
• Stephen Dabiša succeeds Stephen Tvrtko I, as King of Bosnia.
• Shah Mansur becomes leader of the Timurid-occupied Muzaffarid Empire, in central Persia.
• A group of Muzaffarids under Zafar Khan Muzaffar establish a new Sultanate at Gujarat, in western India.
• Vytautas the Great, claimant to the throne of Lithuania, forms an alliance with Muscovy.
• Roman I succeeds Petru, as Prince of Moldavia (now Moldova and northeastern Romania).
• Konrad von Wallenrode succeeds Konrad Zöllner von Rotenstein, as Grand Master of the Teutonic Knights.
• Bridget of Sweden is canonized by Pope Boniface IX.
• Ushkuinik pirates from Novgorod sack the Muscovy towns of Zhukotin and Kazan.
• The Chinese invent toilet paper for use by their emperors.
• Henry I Sinclair, Earl of Orkney, takes control of the Shetland Islands and the Faroe Islands.
• The University of Ferrara is founded on the Italian Peninsula.{{Cite book |last=Grendler |first=Paul F. |url=https://books.google.com/books?id=65e7Xd9a-PgC |title=The Universities of the Italian Renaissance |date=2004-09-29 |publisher=JHU Press |isbn=978-0-8018-8055-1 |pages=99 |language=en}}
• The Ming government orders 50 million trees planted in the Nanjing area.

• June 24 – Joan of France, Duchess of Brittany (d. 1433)
• July 31 – Cyriacus of Ancona, Italian merchant, "father of archaeology" (d. 1453/5)
• October 31 – Edward, King of Portugal (d. 1438)
• November 6 – Edmund Mortimer, 5th Earl of March, English politician (d. 1425)
• Gedun Drub, 1st Dalai Lama (d. 1474)
• Thomas West, 2nd Baron West, English soldier (d. 1415)

• January 16 – Emir Muhammed V of Granada (b. 1338)
• February 16 – John V Palaiologos, Byzantine emperor (b. 1332)
• March 10 – King Tvrtko I of Bosnia (b. 1338)
• November 1 – Amadeus VII, Count of Savoy (b. 1360)
• Gaston III, Count of Foix, co-prince of Andorra
• date unknown
• Petru, Prince of Moldavia
• Margaret, Countess of Mar (approximate date)

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