After landing in 567, St. Augustine preached in Rochester, where Ethelbert soon founded the church of St. Andrew for secular canons. In 604, a bishop was appointed,--St. Augustine’s companion, Justus. Justus became Archbishop of Canterbury in 624, and was succeeded in Rochester by Paulinus; and he, in his turn, by the first English bishop, St. Ythamar (644-655). Rochester’s three chief saints in early days were, therefore, Justus, Paulinus and Ythamar. Gundulf, a monk of Bec in Normandy, was appointed to Rochester in 1076. He immediately turned it into a Benedictine monastery and built a church for his monks. Gundulf was one of the greatest architects of his day: he also built the great Keep of Rochester Castle, portions of the Tower of London and the Castle of Dover. The Saxon Cathedral had suffered from the ravages of the Danes and upon the ruins, Gundulf, with assistance from Archbishop Lanfranc of Canterbury, completed a larger cathedral between 1080 and 1089. The plan was peculiar: it was neither English nor Norman. “All this work of Gundulf’s is now gone except portions of the crypt, the keep and the nave. Of Gundulf’s nave there remain on the south side five arches, together with the lower parts of the walls of both aisles. It is very doubtful whether he built any part of the triforium or clerestory. At present his work can only be seen in its original condition from the side of the aisles. The pierarches had originally two square orders, which remain unaltered on the side of the aisle (cf. Winchester transept). Gundulf’s masonry was in rough tufa.”--(F. B.) Gundulf placed the relics of St. Paulinus in a silver shrine at the eastern end of his new cathedral. Ernulf, Prior of Canterbury, began the second Norman church about 1120. This was continued by his successor, John of Canterbury.