Twenty-seventh Dynasty of Egypt
The Twenty-seventh Dynasty of Egypt (notated Dynasty XXVII, alternatively 27th Dynasty or Dynasty 27), also known as the First Egyptian Satrapy (Old Persian: Mudrāya[8]), was a province (Satrapy) of the Achaemenid Persian Empire between 525 BC and 404 BC. It was founded by Cambyses II, the King of Persia, after the Battle of Pelusium (525 BC) and the Achaemenid conquest of Egypt, and his subsequent crowning as Pharaoh of Egypt. It was disestablished upon the rebellion and crowning of Amyrtaeus as Pharaoh. A second period of Achaemenid rule in Egypt occurred under the Thirty-first Dynasty of Egypt (343–332 BC).