 The remains of two structures of the palace complex of Prince Grigor Mamikonian were found on the south side of the church of St. Grigor.There is some controversy as to the exact date of the completion of this church because of the reference in the inscription to the reign of the Byzantine Emperor Constantine III (641).According to Marr, Haroutyunyan, and Manutcheryan, it is believed that there is confusion with the emperor Constans II (641-668).