Osorkon IV

Osorkon IV was the ninth and final pharaoh of the 22nd Dynasty, who ruled from 619 to 604 B.C. He succeeded Shoshenq V as ruler of Bubastis, and may have been succeeded by his son, the crown prince Shoshenq, who took the honorary name of the 18th Dynasty pharaoh Aakheperure Amenhotep. Little is known about Osorkon IV, but more in the revised history than the traditional.

Osorkon was the son of Shoshenq V, who was the son of Pemay, the son of Shoshenq III. This connects him to the very beginning of the Assyrian occupation, fifty years before his rule. Osorkon had several sons, the most important to the revised chronology being the crown prince Shoshenq (Aakheperure Amenhotep) who ruled alongside Menkheperre Piankhi.

In 619 B.C., Tefnakht attempted to rebel against Piankhi, at the time pharaoh of southern and central Egypt. In this rebellion, Osorkon's father Shoshenq V was killed, leaving him the de facto ruler of Bubastis. Piankhi honored him, and elevated him to a higher level within the post-Assyrian occupation hierarchy. Upon Osorkon IV's death, Menkheperre Piankhi elevated his son Shoshenq to his coregent, and gave him the honorary name Aakheperure Amenhotep.

The now-coregent Shoshenq became commander of many of Piankhi's troops, and inscribed monuments depicting his victories within Menkheperre's campaigns. Soon, however, Shoshenq died, and Piankhi and Shabaka were left the sole rulers of the 25th Dynasty.

The evidence for the revised history can be found at Displaced Dynasties. Evidence regarding this pharaoh and his son Shoshenq (Aakheperure Amenhotep) can be found here and here.