Angelo Guiseppe Roncalli vs Pope John XXIII

Angelo Guiseppe Roncalli and Pope John XXIII both are nouns.

Word	Noun	Adjective	Verb	Adverb
Angelo Guiseppe Roncalli	Yes	No	No	No
Pope John XXIII	Yes	No	No	No

As nouns, Angelo Guiseppe Roncalli and Pope John XXIII are synonyms defined as:

Angelo Guiseppe Roncalli and Pope John XXIII: Italian pope from 1958 to 1963 who convoked the Second Vatican Council (1881-1963)

Other synonyms of Angelo Guiseppe Roncalli include John XXIII.

Angelo Guiseppe Roncalli (noun)	Pope John XXIII (noun)
Italian pope from 1958 to 1963 who convoked the Second Vatican Council (1881-1963)	Italian pope from 1958 to 1963 who convoked the Second Vatican Council (1881-1963)