In the city are graves of Megarians. They made one for those who died in the Persian invasion, and what is called the Aesymnium （Shrine of Aesymnus） was also a tomb of heroes. When Agamemnon's son Hyperion, the last king of Megara
, was killed by Sandion for his greed and violence, they resolved no longer to be ruled by one king, but to have elected magistrates and to obey one another in turn. Then Aesymnus, who had a reputation second to none among the Megarians, came to the god in Delphi
and asked in what way they could be prosperous. The oracle in its reply said that they would fare well if they took counsel with the majority. This utterance they took to refer to the dead, and built a council chamber in this place in order that the grave of their heroes might be within it.