Monastic Masonry and Cistercian Hydraulics: The Ruined Architecture of the Ribble Basin Two Cistercian abbeys—Sawley, founded 1147, and Whalley, established 1296 after migrating from flood-prone Stanlaw in Cheshire—occupied the Ribble Basin within nine miles of each other, their proximity the source of prolonged legal dispute over grain and fishing rights. […]