In Dalmatia and Istria several thrones retain their original position. At Parenzo there remains the semicircle of marble seats for the clergy with the episcopal throne in the centre; a work of the first half of the sixth century. At Aquileia, in the centre of the east end, is the Patriarch's throne of veined white marble, inlaid with serpentine; it is made up of portions of an older throne of genuine Byzantine work. At Grado the marble throne at the east end of the church seems to have been made up in the ninth century; it is surmounted by a stone tester. At Zara in the same position is another marble chair, raised on five steps. At Trau the bench of the clergy remains, but the bishop's throne has been destroyed. At Ossero also is a marble throne made up of fragments of older work.[63] In the apse of the twelfth century church of S. Stefano, Bologna, is a bishop's throne ten steps above the choir. Another remains _in situ_ in Vaison cathedral, Provence. Another episcopal chair of marble is now placed on the north side of the sanctuary of Avignon cathedral; on it are carved the emblems of the Evangelists (104). {102} [Illustration: Exeter] {103} [Illustration: Exeter] {104} In the Victoria and Albert Museum is a throne, painted and gilded, dated 1779, from a church in Cyprus. In Norwich cathedral in the centre of the apse wall of the presbytery there are the fragments of the original stone seat built for the use of the bishop, and on the pavement and adjoining piers there are traces of the steps by which his throne was reached. When Blomfield wrote his _History of Norfolk_, 1739-1775, the steps of the throne had not been disturbed; "the ancient bishop's throne ascended by three steps," and when built, before a rood screen was erected, the bishop had an uninterrupted view down the whole church to the west end of the nave.[64] [Illustration: Avignon]