Which Persian king conquered the Lydian Empire?

Cyrus the Great conquered the Lydian Empire. He defeated King Croesus at the Battle of Thymbra and captured Sardis, Lydia’s wealthy capital, around 547–546 BC.

Lydia controlled much of western Anatolia, including Greek cities along the Aegean coast. Its conquest gave the expanding Achaemenid Empire control over a strategically important region and access to Lydia’s sophisticated administrative and monetary traditions.

A common mix-up is confusing Cyrus with Darius I or Xerxes I, who ruled later and expanded or defended the empire. Cambyses II was Cyrus’s son and successor, but he did not conquer Lydia. The Lydian conquest was one of Cyrus’s major victories before his capture of Babylon in 539 BC.