Château du Grand-Geroldseck

The Château du Grand-Geroldseck is a ruined medieval castle situated in the commune of Haegen in the Bas-Rhin département in Alsace, France.

It was listed as a monument historique by the French Ministry of Culture in 1898.

[1] The castle is one of the oldest in the northern Vosges, founded at the beginning of the 12th century by the lords of Geroldseck, avoués of the abbey of Marmoutier, to ensure the protection of its territories.

Built on a platform, it combined the functions of dwelling and defence.

The square keep has walls three metres thick, faced in embossed stone.