The name of Zerzevan derives from Kurdish word of "zêr" (gold) and it "is the changed form of Zerzaua mentioned by the travellers and it is the name given to the settlement while the village" was located in the same place.
Zerzevan Castle was built in the 4th century by the Eastern Roman Empire as a military base on the ancient trade route between Diyarbakır and Mardin.
The castle is situated on the top of a 105–124 m (344–407 ft)-high rocky hill next to Demirölçek village about 13 km (8.1 mi) southeast of Çınar town in Diyarbakır Province on the highway D.950 to Mardin.
The works were initially carried out by a team of 35 led by an archaeologist from Dicle University, under the supervision of the Diyarbakır Archaeological Museum.
[7] The castle was an Eastern Roman military base and a strategic garrison settlement, dominating the entire valley and controlling the ancient road between Amida (now Diyarbakır) and Dara (now Mardin).
[3] The castle played a key role due to its location on the easternmost border protecting the Roman Empire.
[2] Jewelry found in the castle also indicates that the civilian population and military personnel resided together, with soldiers living alongside their family members.
[5] Restoration and reconstruction works, which took place during the reigns of Eastern Roman emperors Anastasius I Dicorus (r. 491–518) and Justinian I (r. 527–565), saw the castle develop into its final state prior to its ruin.
In the north of the castle, which is at a lower elevation, residences and streets were erected while in the south public buildings were constructed on the higher terrain.