In his days Pharaohnechoh king of Egypt went up against the king of Assyria to the river Euphrates: and king Josiah went against him; and he slew him at Megiddo, when he had seen him. In his days Pharaoh-nechoh - See the note on the death of Josiah, 2 Kings 22:20 (note).
Nechoh is supposed to have been the son of Psammitichus, king of Egypt; and the Assyrian king, whom he was now going to attack, was the famous Nabopolassar. What the cause of this quarrel was, is not known. Some say it was on account of Carchemish, a city on the Euphrates, belonging to the Egyptians, which Nabopolassar had seized. See Isaiah 10:9.