Sixtus IV vs Pope Sixtus IV

Sixtus IV and Pope Sixtus IV both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sixtus IV	Yes	No	No	No
Pope Sixtus IV	Yes	No	No	No

As nouns, Sixtus IV and Pope Sixtus IV are synonyms defined as:

Sixtus IV and Pope Sixtus IV: Italian pope from 1471 to 1484 who consented to the establishment of the Spanish Inquisition and built the Sistine Chapel (1414-1484)

Other synonyms of Sixtus IV include Francesco della Rovere.

Sixtus IV (noun)	Pope Sixtus IV (noun)
Italian pope from 1471 to 1484 who consented to the establishment of the Spanish Inquisition and built the Sistine Chapel (1414-1484)	Italian pope from 1471 to 1484 who consented to the establishment of the Spanish Inquisition and built the Sistine Chapel (1414-1484)