Enea Silvio Piccolomini vs Aeneas Silvius

Enea Silvio Piccolomini and Aeneas Silvius both are nouns.

Word	Noun	Adjective	Verb	Adverb
Enea Silvio Piccolomini	Yes	No	No	No
Aeneas Silvius	Yes	No	No	No

As nouns, Enea Silvio Piccolomini and Aeneas Silvius are synonyms defined as:

Enea Silvio Piccolomini and Aeneas Silvius: Italian pope from 1458 to 1464 who is remembered for his unsuccessful attempt to lead a crusade against the Turks (1405-1464)

Other synonyms of Enea Silvio Piccolomini include Pius II, Pope Pius II.

Enea Silvio Piccolomini (noun)	Aeneas Silvius (noun)
Italian pope from 1458 to 1464 who is remembered for his unsuccessful attempt to lead a crusade against the Turks (1405-1464)	Italian pope from 1458 to 1464 who is remembered for his unsuccessful attempt to lead a crusade against the Turks (1405-1464)