Central power started to decrease under successors of Ramses III, although the energy of High Priests of Amon appeared in such scope that large priest Herihor set a dynasty of priest-kings who dominated southern Egypt through the last years of the 20th dynasty. Egypt under feeble pharaohs of the 21st dynasty was de facto split into southern Egyptian temple country and northeastern Nile Delta that was dominated by pharaohs although south Egypt officially recognized the nation’s motto.
Finally, Libyan mercenaries interfered the battle to the Egyptian philosopher and among them Shoshenq I supposed electricity in 945 BC and was also known from the southern”temple country”. Egypt was dominated by pharaohs of Libyan source before 716 BC (22nd to 24th dynasties) when Egyptian throne was captured by the Nubians who set Kush about the land of Egyptian state Nubia from the 10th century BC.\
Assyrian power started to decline shortly after the conquest of Egypt and customer king and creator of the 26th dynasty Psamtik I was able to return Egypt under his rule, drove outside the Assyrians and attained his admiration from the Kushite kings. An accession of Psamtik I to the Egyptian throne in 663 BC is traditionally seen as the start of the so-called late Period which continued until 323 BC. Egypt beneath pharaohs of the 26th dynasty or Saite Dynasty (as frequently called the capital city Sais) entered a period of wealth through a short one. Persian king Cambyses conquered Egypt in 525 BC and transformed it into a Persian state dominated by satraps or governors (27th dynasty).
Native Egyptian rulers (28th to 30th dynasties) was able to expel the Persians from 404 BC and to revived Egypt’s liberty. Artaxerxes III of Persia recaptured the Nile Valley at 343 BC however, the 2nd uncharted overrule in Egypt lasted just 1 decade. Persians were defeated and expelled from Alexander the Great in 332 BC, while Egypt became a part of the Empire of Alexander the Great