prince vs patrician

prince and patrician both are nouns.

Word	Noun	Adjective	Verb	Adverb
prince	Yes	No	No	No
patrician	Yes	Yes	No	No

As nouns, patrician is a hypernym of prince; that is, patrician is a word with a broader meaning than prince:

prince: a male member of a royal family other than the sovereign (especially the son of a sovereign)
patrician: a member of the aristocracy

Other hypernyms of prince include aristocrat, blue blood, adult male, man.

prince (noun)	patrician (noun)
a male member of a royal family other than the sovereign (especially the son of a sovereign)	a member of the aristocracy
	a person of refined upbringing and manners

prince (adjective)	patrician (adjective)
	belonging to or characteristic of the nobility or aristocracy
	befitting a person of noble origin