According to a later Egyptian tradition, Amirteos somehow offended the dictates of the law, so the son was denied succession. Manetho ascribes to Amirteos six years of reign, probably an accurate figure, since in the Aramaic Elephantine papyrus we read a promise to pay a debt dated in the fifth year.
The Twenty-Eighth Dynasty in Ancient Egypt
Except for a letter from the same source that mentions his name alongside that of his immediate successor, Nepherites I, there are no other references to Amirteos, nor did he leave monuments. And the same darkness envelops the way he came to the throne and the way he lost it.
The only pharaoh of the 28th dynasty, Amirteos of Sais, would have been a relative of the other Amirteo who, after the capture of Intro, had continued the fight against the Persians.
In Greek historians, there is only an uncertain allusion to the new pharaoh, whom Diodorus mistakenly calls " Psammetico, a descendant of the (famous) Psamtik". The only episode involving him is related to the Persians. After the battle of Cunassa in 401 BC, in which the insurgent Prince Cyrus was routed and killed, a friend of these, Admiral Tamo of Memphis, named by Cyrus Governor of Ionia, repaired with the entire fleet in Egypt to escape the revenge of the satrap of Artaxerxes II, Tissaferne; but Amirteos, if it is to him that Diodorus refers under the name of Psamtik, sentenced him to death.