Between 1225 and 1280 Nicholas de Cogenhoe, believed to be a Crusader, built a new church, and his effigy rests today in the South aisle of St. Peter’s. The son of Nicholas, William de Cogenhoe, opened up an arch on the north side of the chancel in AD 1320 and built a Chantry Chapel to Our Lady. About 20 years later William’s son, Giles de Cogenhoe, widened the nave and added the north and south aisles and a Founders’ Chapel in the south aisle.