It is traditionally narrated that St. Columba and his companion, St. Oran, landed on Oronsay after leaving Ireland; but finding that the latter country could still be seen from the highest point of the island, they forsook it and sailed to Iona. St. Oran, however, gave his name to the island, and, together with Colonsay, it seems, from the numerous remains of churches which once existed on these islands, to have been a sacred locality, the remains of nine old churches and the sites of three more--ten in Colonsay and two in Oronsay--being still traceable. The most important appears to have been the Monastery of Kiloran, in Colonsay, of which no remains now exist. Next to it was the Priory of Oronsay. This priory of Canons Regular of St. Augustine appears to have been founded in the fourteenth century by the Lord of the Isles as a cell of the Abbey of Holyrood at Edinburgh. The priory is situated at the extreme west end of the island, on the lowermost slope of the _Beinn Oronsay_, just short of the point where its rugged cliffs front the Atlantic. The general arrangement of the buildings (Fig. 1309) is peculiar. The ground slopes rapidly from north to south, necessarily carrying the drainage with it; yet, contrary to the usual custom, the cloisters and residential buildings were placed to the north of the church. Exclusive of projections at the north-east and south-west angles, and a mortuary chapel on the south, the structures occupy a parallelogram about 87 feet from north to south, by 65 feet from east to west. The latter length is also that of the church proper, which occupies the south side of the square, but has at the west end a narthex about 15 feet square internally, which projects beyond the general range of the buildings. The walls of the narthex are now level with those of the church, but as there are roughly hewn corbel stones for carrying a floor overhead, it is probable this is only the lower stage of a bell-tower, of which the upper part has been long since demolished. The greater thickness of the walls and two sadly injured freestone buttresses on its south face (Fig. 1310) favour this idea. Entrance is obtained by a doorway with a plain pointed freestone arch, having a hood moulding close to the westmost buttress (see Fig 1310). The church is, internally, nearly 18 feet in width; and at the right hand, on entering, there remains the solid foundation of a stone stair leading to a tribune or organ gallery, recesses for the ends of massive beams to carry it being still visible, together with rough rubble corbelling on either side.