Cyrus the Elder vs Cyrus II

Cyrus the Elder and Cyrus II both are nouns.

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

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

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

Other synonyms of Cyrus the Elder include Cyrus the Great.

Cyrus the Elder (noun)	Cyrus II (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)