He was treated with equal friendliness by Antigonus's son Demetrius, who made him polemarch of Thespiae, and by Antigonus Gonatas, at whose court he died at the age of 104.
They alone held the two offices, those of polemarch and archon, which were instituted during the 8th century B.C. to restrict the powers of the kings.
The change was clearly effected by the devolution of the military and civil powers of the king to the polemarch and the archon, while the archon basileus (or king) retained control of state religion.
If this be true, it follows that the office of polemarch must have lost its military importance, which was not the case, inasmuch as the polemarch at Marathon gave the casting vote in favour of immediate battle.