/ Dictionary / Index L Louis I: Meaning and Definition of Find definitions for: Lou•is I Pronunciation: (l'ē, l'is Fr. lwē), [key] — (“le Débonaire” “the Pious”) a.d. 788–840, king of France and Germany 814–840; emperor of the Holy Roman Empire 814–840 (son of Charlemagne). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. louis Louis II Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language