princess vs patrician

princess and patrician both are nouns.

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

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

princess: a female member of a royal family other than the queen (especially the daughter of a sovereign)
patrician: a member of the aristocracy

Other hypernyms of princess include aristocrat, blue blood, adult female, woman.

princess (noun)	patrician (noun)
a female member of a royal family other than the queen (especially the daughter of a sovereign)	a member of the aristocracy
	a person of refined upbringing and manners

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