/ Dictionary / Index L Louis XIII: Meaning and Definition of Find definitions for: Louis XIII Pronunciation: [key] 1601–43, king of France 1610–43 (son of Henry IV of Navarre). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Louis XII Louis XV Related Content Daily Word Quiz: bungled Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language