Charles VI

WordReference Random House Unabridged Dictionary of American English © 2025

Charles VI, 

1. Biographical ("Charles the Mad'' or "Charles the Well-beloved'') 1368–1422, king of France 1380–1422.
2. Biographical 1685–1740, emperor of the Holy Roman Empire 1711–40;
   as Charles III, king of Hungary 1711–40.

Collins Concise English Dictionary © HarperCollins Publishers::

Charles VI noun

1. known as Charles the Mad or Charles the Well-Beloved. 1368–1422, king of France (1380–1422): defeated by Henry V of England at Agincourt (1415), he was forced by the Treaty of Troyes (1420) to recognize Henry as his successor
2. 1685–1740, Holy Roman Emperor (1711–40). His claim to the Spanish throne (1700) led to the War of the Spanish Succession