Louis I uncommon noun 1. third son of Charlemagne and king of France and Germany and Holy Roman Emperor (778-840) SynonymsLouis ILouis the Pious Related words Word family LouisvilleLouis IILouis IIILouis Isadore KahnLouis IVLouis IX Broader terms King of France WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
