Pius XI vs Achille Ratti

Pius XI and Achille Ratti both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pius XI	Yes	No	No	No
Achille Ratti	Yes	No	No	No

As nouns, Pius XI and Achille Ratti are synonyms defined as:

Pius XI and Achille Ratti: pope who signed a treaty with Mussolini recognizing the Vatican City as an independent state (1857-1939)

Other synonyms of Pius XI include Ambrogio Damiano Achille Ratti, Pope Pius XI.

Pius XI (noun)	Achille Ratti (noun)
pope who signed a treaty with Mussolini recognizing the Vatican City as an independent state (1857-1939)	pope who signed a treaty with Mussolini recognizing the Vatican City as an independent state (1857-1939)