Marzpetuni Fortress complex “Gevorg Marzpetuni” is located 6 km North-West of Urtsadzor village of Ararat region of RA. The complex was founded in the 10-13th cc. Here there is also the semi-circle vaulted asp; the rectangular perimeter of its inner walls includes the ruins of the church of the 12-13th cc. The church of the monastery-fortress founded in the 13th century, is a vaulted hall, built of well treated stones of white felsite. It is surrounded by fortress walls of rectangular plan, four corners of which are strengthened with round towers. The vaulted living and household buildings are constructed along the Southern and Eastern walls. Fortresses of this kind were important military bases in Armenia.