Athanasius the Great vs Church of Rome

Athanasius the Great and Church of Rome both are nouns.

Word	Noun	Adjective	Verb	Adverb
Athanasius the Great	Yes	No	No	No
Church of Rome	Yes	No	No	No

Athanasius the Great (noun)	Church of Rome (noun)
(Roman Catholic Church) Greek patriarch of Alexandria who championed Christian orthodoxy against Arianism; a church father, saint, and Doctor of the Church (293-373)	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy