Rochester Cathedral was founded in around 604 by Ethelbert, King of Kent. After the Norman Conquest Gundulf, was chosen as the first Norman Bishop. Gundulf rebuilt the Cathedral, improved the surrounding monastic buildings and replaced the secular canons with monks of the Benedictine Order. The nave and the restored west front are mainly twelfth century. In 1201 a pilgrim was murdered outside the cathedral and became St. William of Perth.