Charles V of France (died 1380)

Charles V, called the Wise, was King of France from 1364 to his death in 1380. His reign marked an early high point for France during the Hundred Years' War as his armies recovered much of the territory held by the English and successfully reversed the military losses of his predecessors.

January 21 is the 21st day of the year in the Gregorian calendar; 344 days remain until the end of the year.