List of state leaders in 1403

1402 state leaders - Events of 1403 - 1404 state leaders - State leaders by year ----

Africa

*Ethiopia - Dawit I, Emperor of Ethiopia, (1382 - 1413)

Asia

*China (Ming Dynasty) - Yongle, Emperor of China (1402 - 1424)
*Chūzan - Bunei - King of Chūzan (1395-1407)
*Hokuzan - Hananchi - King of Hokuzan (1401-1416)
* Japan
** Monarch - Go-Komatsu, Emperor of Japan (1392-1412)
** Shogun (Ashikaga) - Ashikaga Yoshimochi, Shogun of Japan (1394-1423)
*Korea (Joseon Dynasty) - Taejong, King of Joseon (1400-1418)
*Nanzan - Ououso - King of Nanzan (1403-1413)

Europe

*Byzantine Empire - Manuel II Palaeologus, Byzantine Emperor, (1391-1425)
*Castile - Henry III, King of Castile (1390-1406)
*England - Henry IV, King of England (1399-1413)
*France - Charles VI, King of France (1380-1422)
*Germany - (House of Wittelsbach) - Ruprecht, king of the Romans (1400-1410)
**Bavaria-Straubing (House of Wittelsbach) - Albert, Duke of Bavaria-Straubing and count of Holland and Hainaut (1347-1404)
**Margraviate of Meißen (Wettin) - William der Einäugige (1349-1407), Wilhelm der Reiche (1381-1425) and Friedrich der Streitbare (1381-1428)
**Thuringia (Wettin) - Balthasar, Landgrave of Thuringia (1349-1406)
*Poland - Władysław II Jagiełło, King of Poland (1386-1434)
*Portugal - John I, King of Portugal (1385-1433)
*Scotland - Robert III, King of Scotland (1390-1406)

Middle East and North Africa

*Ak Koyunlu -
*# "White Sheep Turkmen granted control of a part of Anatolia by Tamerlane in 1402"
*# Kara Osman, Leader of the White Sheep Turkmen (1403-1435)
*Cyprus - Janus, King of Cyprus (1398-1432)
*Egypt - Faraj, Sultan of Egypt (1399-1405)
*Trebizond - Manuel III, Emperor of Trebizond (1390-1416)