Thimert-Gâtelles (French pronunciation: [timɛʁ ɡatɛl]) is a commune in the Eure-et-Loir department in northern France.
It was the site of a royal castle until 1058, when it was taken by the Normans. Between 1058 and 1060, it was besieged by the king of France. After that the castle was razed and a new castle built nearby, giving rise to Châteauneuf-en-Thymerais.
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