The first fortress on this site was built by the Romans to overlook traffic on the River Maine. In the 9th Century a further fortress was built by the Count of Anjou. In 1204 the region was conquered by Phillip II, King of France and the building of the massive castle was commenced during the reign of his grandson Louis IX in 1234.
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Here are some views of the towers and massive walls.
Some views from the ramparts
Views INSIDE the walls. The first shot shows just how thick the walls are. This passage leads to one of the corner towers
All of these photos were taken by me with a Fuji HS50 bridge camera. I retain all copyright.