Château de Cinq-Mars

The Château de Cinq-Mars is a castle in the commune of Cinq-Mars-la-Pile in the Indre-et-Loire département of France.

Following the execution of the owner, Henri de Ruzé d'Effiat, Grand Écuyer (squire) and favourite of the King, in 1642 the fortress was razed by order of Cardinal Richelieu.

A triangular construction, called the Eperon, extends from the south east of the fortress.

In the corresponding corner of the wall above the moat is a cylindrical tower dating from the 15th century which contained a stone spiral staircase which allowed the lords to descend from the castle to the priory joined to the church.

It has been listed since 1976 as a monument historique by the French Ministry of Culture.