The Château de Blain was originally constructed by order of Alan IV, Duke of Brittany, around 1108. The fortress passed by marriage to the Clisson family in 1225. Following Olivier I de Clisson's revolt against the Duke, the castle was razed in 1260.
Olivier I's son, Olivier II obtained permission from the Duke to rebuild the castle. The Clissons progressively enlarged the castle during the 14th century. In 1407, the castle became the property of the House of Rohan. Louis, duc de Rohan is buried here. During the French Wars of Religion, the castle was besieged and set on fire in 1591 during the fighting between the Duke of Mercœur and Jean de Montauban, the knight De Goust. It was restored by Catherine de Parthenay, who installed herself there with her children. In 1628, Henri II de Rohan having become the leader of the Protestant princes, Cardinal Richelieu ordered the dismantling of the castle which thus lost its military role.
The castle suffered further serious damage during the French Revolution. It was pillaged and burnt, along with the Rohan family archives. It served as a barracks and later as a prison. It passed through the hands of several proprietors, including Marie Bonaparte in 1918. These owners remodelled the north wing (known as the Logis du Roy) and the Mill Tower (la tour du moulin).
The South West Tower and the Drawbridge Tower with the buildings on either side form the entrance to the castle. Along with the Constable's Tower (tour du Connétable), the two towers in the south east and the monumental entrance on the south facade of the logis du Roi, they date from before the 17th century. Together with the remains of the towers and the fortifications linking them, these have been classified as a monument historique by the French Ministry of Culture. The north wing of the logis du Roi was remodelled in the 19th century. The castle is home to a fresco centre and an ancient printshop. It has been listed since 1977 as a monument historique by the French Ministry of Culture.References:
The eight towns in south-eastern Sicily, including Ragusa, were all rebuilt after 1693 on or beside towns existing at the time of the earthquake which took place in that year. They represent a considerable collective undertaking, successfully carried out at a high level of architectural and artistic achievement. Keeping within the late Baroque style of the day, they also depict distinctive innovations in town planning and urban building. Together with seven other cities in the Val di Noto, it is part of a UNESCO World Heritage Site.
In 1693 Ragusa was devastated by a huge earthquake, which killed some 5,000 inhabitants. Following this catastrophe the city was largely rebuilt, and many Baroque buildings from this time remain in the city. Most of the population moved to a new settlement in the former district of Patro, calling this new municipality 'Ragusa Superiore' (Upper Ragusa) and the ancient city 'Ragusa Inferiore' (Lower Ragusa). The two cities remained separated until 1926, when they were fused together to become a provincial capital in 1927.