Louis Jolliet vs Jolliet

Louis Jolliet and Jolliet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Louis Jolliet	Yes	No	No	No
Jolliet	Yes	No	No	No

As nouns, Louis Jolliet and Jolliet are synonyms defined as:

Louis Jolliet and Jolliet: French explorer (with Jacques Marquette) of the upper Mississippi River valley (1645-1700)

Other synonyms of Louis Jolliet include Joliet, Louis Joliet.

Louis Jolliet (noun)	Jolliet (noun)
French explorer (with Jacques Marquette) of the upper Mississippi River valley (1645-1700)	French explorer (with Jacques Marquette) of the upper Mississippi River valley (1645-1700)