Church of Rome vs Eusebius Sophronius Hieronymus

Church of Rome and Eusebius Sophronius Hieronymus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Church of Rome	Yes	No	No	No
Eusebius Sophronius Hieronymus	Yes	No	No	No

Church of Rome (noun)	Eusebius Sophronius Hieronymus (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	(Roman Catholic Church) one of the great Fathers of the early Christian Church whose major work was his translation of the Scriptures from Hebrew and Greek into Latin (which became the Vulgate); a saint and Doctor of the Church (347-420)