Osorkon IV

Usermaatre Osorkon, designated Osorkon IV, was an ancient Egyptian pharaoh during the late Third Intermediate Period. Long considered the last king of the 22nd Dynasty, he was de facto little more than ruler in Tanis and Bubastis, in Lower Egypt and is now generally grouped in the Tanite 23rd Dynasty. He is generally – though not universally – identified with the King Shilkanni mentioned by Assyrian sources, and with the biblical So, King of Egypt mentioned in the second Books of Kings (17:4).