Street of the tombs 4th century BC grave plot of brothers Agathon and Sosikrates of Herakleia. Kerameikos. Athens. Greece. The burial mouments are of the brothers Agathon and Sosikrates of Herakleia. To the left is the Aedicula stele of Korallion, wife of Agathon, centre is the tall stele of Agathon and Sosikrates. Serving as a burial ground as long ago as the 12th century BC, Kerameikos located in the ancient neighbourhood of potters contains part of the ancient city walls and the Dipylon, the main gate of Ancient Athens at a junction of the Sacred Way and Panathenaic Way. It served as a burial ground for the richest and most distinguished citizens of the city.