Saint-Ouen Abbey, is a large Gothic Roman Catholic church and former Benedictine monastic church in Rouen. It is named for Audoin, 7th-century bishop of Rouen in modern Normandy, France. The church's name is sometimes anglicized as St Owen's. Built on a similar scale to nearby Rouen Cathedral, the abbey is famous for both its architecture and its large, unaltered Cavaillé-Coll organ, which was described by Charles-Marie Widor as "a Michelangelo of an organ". With the cathedral and the Church of Saint-Maclou, Saint-Ouen is one of the principal French Gothic monuments of the city.