The Romanesque abbey, a listed building, was founded in the 11th century by the Barons of La Haye-du-Puits. It was one of the first buildings to be entirely vaulted over intersecting ribs.
Lessay is a commune in the Manche department in north-western France. On 1 January 2016, the former commune of Angoville-sur-Ay was merged into Lessay. Lessay is a small town in the centre of the Cotentin Peninsula, Normandy. It was founded as a monastery but a town grew up around it over the years. The 10th-century Lessay Abbey is one of the.The town of Lessay is in the centre of the Manche department of Normandy, and developed in the 11th century around the benedictine Lessay Abbey, that was founded here in 1056. The abbey is the principal highlight of a visit. Explore Lessay Abbey.The Abbey of the Holy Trinity is an 11th century Romanesque Benedictine Abbey church located in Lessay, Manche, France, then in Normandy. The abbey is one of the most important Norman Romanesque churches as one of the earliest examples of the use of the rib vault in Western churches, that was later a key element of Gothic architecture. The abbey was nearly destroyed in 1357.