- Charles Gustavus, 1622–60, king of Sweden 1654–60.
- 1757–1836, king of France 1824–30.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- title of Charles Gustavus . 1622–60, king of Sweden, who warred with Poland and Denmark in an attempt to create a unified Baltic state
- 1757–1836, king of France (1824–30): his attempt to restore absolutism led to his enforced exile