The church is large if compared to other ancient Armenian temples, but small if judged by a Western standard. The area enclosed must be rather less than in the case of the cathedral at Ani, although the dimensions are about the same when the four projections are included. The measurements of the interior, which I took myself, give an extreme length of 108 feet 4 inches, and an extreme breadth of just over 98 feet. Each apse has a depth of about 15 feet 3 inches--a dimension which I have included in my totals. [164] In the south apse stands the chest containing the vessel with the holy oil, and beside it a little lamp which flickers night and day. The recess of its opposite counterpart is adorned with mural paintings representing eight full-length portraits of the pillars of the Armenian Church. They are identified as St. Gregory, with his sons Aristakes and Verthanes, and his grandson Grigor; as Yusik, Nerses the First, Sahak and Mesrop. The ceremony of ordination of bishops takes place in this northern apse. A cistern has been sunk below the floor in front of the recess to serve in time of siege. Two thrones are conspicuous in the body of the church, both of which may be discerned in my illustration. The first, which adjoins the central altar, is inscribed with the name of Petros Katholikos (Peter II. 1748) and is said to have been a present from the Pope. [165] The second, situated further east, is that which was occupied by the Katholikos during the service which I attended. It is the gift of Armenians during the pontificate of Astvatsadur (1715-25).