Roman Catholic Pope vs Gregory VII

Roman Catholic Pope and Gregory VII both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman Catholic Pope	Yes	No	No	No
Gregory VII	Yes	No	No	No

Roman Catholic Pope (noun)	Gregory VII (noun)
the head of the Roman Catholic Church	the Italian pope who fought to establish the supremacy of the pope over the Roman Catholic Church and the supremacy of the church over the state (1020-1085)