Rouen Cathedral (c1280). Rouen Cathedral is a Roman Catholic church in Rouen, Normandy, France. It is the see of the Archbishop of Rouen, Primate of Normandy. The cathedral is in the Gothic architectural tradition. A church was already present at the location in the late 4th century, and eventually a cathedral was established in Rouen as in Poitiers. It was enlarged by St. Ouen in 650, and visited by Charlemagne in 769. All the buildings perished during a Viking raid in the 9th century. The Viking leader, Rollo, founder of the Duchy of Normandy, was baptised here in 915 and buried in 932. His grandson, Richard I, further enlarged it in 950. St. Romain's tower was built in 1035. The buildings of Archbishop Robert II were consecrated in 1065. The cathedral was struck by lightning in 1110. Construction on the current building began in the 12th century in Early Gothic style for Saint Romain's tower, front side porches and part of the nave. The cathedral was burnt in 1200. Others were built in High Gothic style for the mainworks: nave, transept, choir and first floor of the lantern tower in the 13th century; side chapels, lady chapel and side doorways in the 14th century. Some windows are still decorated with stained glass of the 13th century, famous because of a special cobalt blue colour, known as the blue from Chartres. The north transept end commenced in 1280. The cathedral was again struck by lightning in 1284. In 1302, the old Lady chapel was taken down and the new Lady chapel was built in 1360. The spire was blown down in 1353, choir windows were enlarged in 1430, the upper storey of the north-west tower was added in 1477, gable of the north transept built in 1478. Some more parts were built in Late Gothic style, these include the last storey of Saint Romain's Tower, the Butter Tower, main porch of the front and the two storeys of the lantern tower. Construction of the south-west tower began in 1485 and was finished in 1507. The Butter Tower was erected in the early 16th century. Butter was banned during Lent and those who did not wish to forgo this indulgence would donate monies of six deniers Tournois from each diocesan for this permission. The realization of the Butter Tower caused disturbances in the facade, which caused the reconstruction of the central portal and the west front, which begun in 1509 and finished in 1530. The original Gothic spire suffered a fire in 1514, nevertheless the project of a stone spire was denied and a wooden construction covered with gold-plated lead was begun in 1515, a parapet was added in 1580. In the late 16th century the cathedral was badly damaged during the French Wars of Religion: the Calvinists damaged much of the furniture, tombs, stained-glass windows and statuary. The cathedral was again struck by lightning in 1625 and 1642, then damaged by a hurricane in 1683, the wood-work of the choir burnt in 1727 and the bell broke in 1786. In the late 18th century after the French Revolution, the state nationalised the building and sold some of its furniture and statues to make money and the chapel fences were melted down to make guns to support the wars of the French Republic. The Renaissance spire was destroyed by lightning in 1822. A new one was rebuilt in Neo-Gothic style, but of cast iron instead of wood. The cathedral was named the tallest building in the world from 1876 to 1880. In the 20th century, during World War II, the cathedral was bombed in April 1944 by the British Royal Air Force. Seven bombs fell on the building, narrowly missing a key pillar of the lantern tower, but damaging much of the south aisle and destroying two rose windows. One of the bombs did not explode. A second bombing by the U.S. Army Air Force burned the oldest tower, called the North Tower or Saint-Romain Tower. During the fire the bells melted, leaving molten remains on the floor. In 1999, during Cyclone Lothar, a copper-clad wooden turret, which weighed 26 tons, broke and fell partly into the church and damaged the choir. The cathedral has had a strong musical tradition since the Middle Ages. Its choir was famous up to the French Revolution for singing from memory. The first major organist to work here was Jean Titelouze, the so-called father of the French organ school. He occupied the post of the titular organist in 1588-1633. Around 1600 in collaboration with the famous Franco-Flemish organ builder Crespin Carlier, Titelouze transformed the organ of the cathedral to one of the best instruments in France. Some 80 years later the legendary organ builder Robert Clicquot restored and enhanced the instrument; organists who played the new organ included distinguished composers such as Jacques Boyvin, and Francois d'Agincourt. New organs were built by Merklin & Schutze and, after World War II, by Jacquot-Lavergne.