The Battle of Ephesus (498 BC) was a battle in the Ionian Revolt. It saw the satrap Artaphernes defeating the forces of the Ionian rebels. This article is in need of attention. ... The Ionian Revolts were triggered by the actions of Aristagoras, the tyrant of the Ionian city of Miletus at the end of the 6th century BC and the beginning of the 5th century BC. They constituted the first major conflict between Greece and Persia. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Artaphernes, more correctly Artaphrenes, was the brother of Darius Hystaspis, and satrap of Sardis. ...