Diomedes demadid

Diomedes Demadid was the Hierophant during the reign of Seleukos I Nikator.

His marriage to Amastris Frataraka raised his family to be one of the most prominent in the Seleukid domains. He is father to Damaspia, who is rumoured to have had a relation with Seleukos I Nikator.

A reformist at heart, he used his political influences to expand the rights of the common folk. His care for the common folk caused the people of Seleukeia Megala to call out for a festival in his name, a request Seleukos politely declined. During Antiochos I' reign people again called out for Diomedes to be honour with a festival for his piety, which Antiochos granted.

After being replaced as hierophant by Arses Vivanid, he participated, aged 47, in the olympic games of 281 BC.

After the dead of Arses in 266 BC he was recalled to the office of hierophant.