The Castle of Rochefort-en-Valdaine is an ancient earth castle from the end of x th century or the beginning of the xi th century, which was replaced by a stone castle in the xii th century and whose ruins stand in the town of Rochefort-en-Valdaine in the department of Drôme and the region Auvergne-Rhône-Alpes . It was the capital of the command of Rochefort attested in 1138.