Histories

Ariston gave Agetus whatever it was that he chose out of all his treasures, and then, seeking equal recompense from him, tried to take the wife of his comrade. Agetus said that he had agreed to anything but that, but he was forced by his oath and by the deceitful trick to let his wife be taken.

In this way Ariston married his third wife, after divorcing the second one. But his new wife gave birth to Demaratus too soon, before ten lunar months had passed.

When one of his servants announced to him as he sat in council with the ephors that he had a son, Ariston, knowing the time of the marriage, counted up the months on his fingers and swore on oath, “It's not mine.” The ephors heard this but did not make anything of it. When the boy grew up, Ariston regretted having said that, for he firmly believed Demaratus to be his own son.