The Royal Stoa (46 x 10 m.) was built in the time of Augustus (1st century A.D.), in the SW part of the Agora. The main entrance is on the east side, towards the Agora and the roof was supported by an interior Doric colonnade along the axis of the building. Statues of members of the Ceasar's family were erected in the north part. Two inscribed slabs built in the west wall, record that the portico was repaired in A.D. 149 by Kleitosthenes, a rich Theran.