Tarquinius Superbus vs Tarquin the Proud

Tarquinius Superbus and Tarquin the Proud both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tarquinius Superbus	Yes	No	No	No
Tarquin the Proud	Yes	No	No	No

As nouns, Tarquinius Superbus and Tarquin the Proud are synonyms defined as:

Tarquinius Superbus and Tarquin the Proud: according to legend, the seventh and last Etruscan king of Rome who was expelled for his cruelty (reigned from 534 to 510 BC)

Other synonyms of Tarquinius Superbus include Lucius Tarquinius Superbus, Tarquin, Tarquinius.

Tarquinius Superbus (noun)	Tarquin the Proud (noun)
according to legend, the seventh and last Etruscan king of Rome who was expelled for his cruelty (reigned from 534 to 510 BC)	according to legend, the seventh and last Etruscan king of Rome who was expelled for his cruelty (reigned from 534 to 510 BC)