The Château de Meywihr is a ruined 10th century castle in the commune of Ammerschwihr in the Haut-Rhin département of France.
After several changes of ownership, the ruined castle was used a quarry in 1782, to provide stone for the building of a presbytery in the town.
[3] The exposed walls were more than 2 metres thick, composed of regular blocks of sandstone, limestone and granite, and represented the two lower levels of the foundations.
The nature of the stones and their construction dates the origin of the castle to the end of the Romanesque era.
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