The foundations of the nave, resting in peat, slipped in 1562, bringing down the south wall and the arched stone roof (the north wall, which visibly leans, survived, and largely dates back to 1230). Partial repairs were carried out but much of the debris was simply levelled and new flooring built over it until 1871. In 1620 the English-born judge Luke Gernon observed that Christchurch was in a better state of repair than St. Patrick's; he does not seem to have been overly impressed by either.