Urban VIII vs Pope Urban VIII

Urban VIII and Pope Urban VIII both are nouns.

Word	Noun	Adjective	Verb	Adverb
Urban VIII	Yes	No	No	No
Pope Urban VIII	Yes	No	No	No

As nouns, Urban VIII and Pope Urban VIII are synonyms defined as:

Urban VIII and Pope Urban VIII: Italian pope from 1623 to 1644 who sanctioned the condemnation of Galileo but later freed him (1568-1644)

Other synonyms of Urban VIII include Maffeo Barberini.

Urban VIII (noun)	Pope Urban VIII (noun)
Italian pope from 1623 to 1644 who sanctioned the condemnation of Galileo but later freed him (1568-1644)	Italian pope from 1623 to 1644 who sanctioned the condemnation of Galileo but later freed him (1568-1644)