It was dedicated to the famous general Memmius and his dictator grandfather Sulla. Memmius Monument was built in the 1st Century BC. Nowadays new excavations are showing that there were pipes very close to the monument and a side street nearby.
This Monument is erected by the Ephesians because Memmuis saved Ephesus from an invasion made by Mithridates Euopator, King of Pontus. Mithridates captured Ephesus in 84 BC. Memmius defeated him in the year 88 BC.