1397

• The Union of Kalmar is established between Denmark, Sweden and Norway.
  
• Continuation of the Hundred Years' War.
  
• Continuation of the Great Schism of Western Christianity, which began in 1377.
  

Those who ruled:

• Albert, Duke of Bavaria-Straubing, Count of Holland and Hainaut, from 1347 to 1404
  
• Barquq, Sultan of Egypt, from 1390 to 1399
  
• Beyazid I, Sultan of the Ottoman Empire, from 1389 to 1402
  
• Pope Boniface IX, Bishop of Rome, from 1389 to 1404
  
• Charles VI, King of France, from 1380 to 1422
  
• Go-Komatsu, Emperor of Japan, from 1392 to 1412
  
• Henry III, House of Trastamara, King of Castile and Leon, from 1390 to 1406
  
• Hongwu, Emperor of China, Ming Dynasty, from 1368 to 1398
  
• John V, Duke of Brittany, from 1345 to 1399
  
• Ladislas of Naples, King of Naples, King of Jerusalem, King of Sicily, King of Hungary, from 1386 to 1414
  
• Louis, Lord of Monaco, House of Grimaldi, from 1395 to 1402
  
• Manuel II, Byzantine Empire, from 1391 to 1425
  
• Martin I, King of Aragon and Valencia, Count of Barcelona, House of Barcelona, from 1396 to 1410
  
• Richard II, King of England, from 1377 to 1399
  
• Taejo, King of Korea, Joseon Dynasty, from 1392 to 1398
  
• Vladislav II, King of Poland, Jagiellon Dynasty, from 1386 to 1434
  
• Wenceslaus, House of Luxembourg, King of the Romans, from 1378 to 1400
  

Those who were born:

• Blanche of Brittany
  
• Paolo dal Pozzo Toscanelli, astronomer and mathematician
  
• Paolo Uccello, painter
  
• Louis, Duke of Guyenne, January 22
  
• Sejong, The Great, Ruler of Korea, Joseon Dynasty, May 6
  
• Juan II, King of Aragon, June 29
  
• Albert II, Holy Roman Emperor, August 10
  
• Pope Nicholas V, Bishop of Rome, November 15
  

Those who died:

• January 11, Skirgiello, Grand Prince of Lithuania
  
• February 19, Enguerrand VII de Coucy, 1st Earl of Bedford (born in 1340)
  
• June 3, William Montacute, 2nd Earl of Salisbury (born in 1328)
  
• June 16, Philip of Artois, Count of Eu (born in 1358)
  
• September 2, Francesco Landini
  
• September 15, Adam, Cardinal Easton
  
• September 21, Richard FitzAlan, 11th Earl of Arundel (born in 1346)
  
• Pedro IV (born in 1319)
  

1396 - 1397 - 1398

14th century