Gaul vs French person

Gaul and French person both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gaul	Yes	No	No	No
French person	Yes	No	No	No

As nouns, French person is a hypernym of Gaul; that is, French person is a word with a broader meaning than Gaul:

Gaul (noun)	French person (noun)
an ancient region of western Europe that included what is now northern Italy and France and Belgium and part of Germany and the Netherlands	a person of French nationality
a Celt of ancient Gaul
a person of French descent