The Egyptian Delta had collapsed in 720…

The Egyptian Delta had collapsed in 720 BCE, after the death of Shoshenq V, the last king of the Meshwesh Libyan Twenty-second dynasty of Egypt, into various city states under the control of numerous local kinglets such as Tefnakht of Sais, Osorkon IV of Bubastis and Iuput II of Leontopolis.

Libyan prince Tefnakht or Tefnakhte, the founding king of the relatively short Twenty-fourth dynasty, is thought to have reigned during this era as the "Great Chief of the West" and Prince of Saïs. (Tefnakht I is actually the second ruler of Saïs, the chief city of the fifth nome of Lower Egypt; he had been preceded by Osorkon C, who is attested by several documents mentioning him as this city's Chief of the Ma and Army Leader, according to Kenneth Kitchen.)

From his base in the northwest delta, ...