Charles III

noun

Charles II(def 2).
Charles the Simple,a.d. 879–929, king of France 898–923.
Charles VI(def 2).
1716–1788, king of Spain 1759–88; as Charles IV, king of Naples 1734–59.

British Dictionary definitions for charles iii

Charles III

noun

known as Charles the Fat . 839–888 ad, Holy Roman Emperor (881–887) and, as Charles II, king of France (884–887). He briefly reunited the empire of Charlemagne
1716–88, king of Spain (1759–88), who curbed the power of the Church and tried to modernize his country