S an altar consecrated to the worship of that Lady.... When the priest performed the Divine mysteries at this altar he had his face turned to the east.... Behind him, to the west, was the pontifical chair constructed with handsome workmanship, and of large stones and cement, and far removed from the Lord's table, being contiguous to the wall of the church which embraced the entire area of the building. Lanfranc, the first Norman archbishop, was granted the see in 1070. He quickly set about the task of building himself a cathedral. Making no attempt to restore the old fabric, he even destroyed what was left of the monastic building, and built up an entirely new church and monastery. Seven years sufficed to complete his cathedral, which stood on the same ground as the earlier fane. His work, however, was not long left undisturbed. It had not stood for twenty years before the east end of the church