Château de Montaillou

The Château de Montaillou is a ruined castle in the French village of Montaillou, in the Ariège département. The village of Montaillou, standing on the slope of Mount Allion, was made famous in Emmanuel Le Roy Ladurie's history, Montaillou, village occitan.
At the top of the village is all that remains of the rectangular castle: three walls of a ruined keep and evidence of other walls and earthworks. The castle probably had three storeys. The castle was built by the lords of Alion around the end of the 12th century, occupying a platform roughly 100m long by 30 to 40 m wide. Access was controlled by a dry moat cut into bare rock. The courtyard was surrounded by a curtain wall, the base of which is partially conserved. Further dry moats provided defence to the north and east, while to the south the steep slope of the site was sufficient. The plan of the castle was simple: a wall linked to a tower followed the contours of the hill.

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