Cyrus II vs Cyrus the Great

Cyrus II and Cyrus the Great both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cyrus II	Yes	No	No	No
Cyrus the Great	Yes	No	No	No

As nouns, Cyrus II and Cyrus the Great are synonyms defined as:

Cyrus II and Cyrus the Great: king of Persia and founder of the Persian Empire (circa 600-529 BC)

Other synonyms of Cyrus II include Cyrus the Elder.

Cyrus II (noun)	Cyrus the Great (noun)
king of Persia and founder of the Persian Empire (circa 600-529 BC)	king of Persia and founder of the Persian Empire (circa 600-529 BC)