Question: Oebares was a Persian officer of Cyrus II of Persia, commonly known as Cyrus the Great  and also called Cyrus the Elder by the Greeks, was the founder of which Empire?
Sentence (from "Teispes"): According to 7th-century BC documents, he captured the Elamite city of Anshan, speculated to have occurred after the Persians were freed from Median supremacy, and expanded his small kingdom.
Relevant evidence: No