The Castle of Septème is a former stronghold of the xiv th century, rebuilt in the xv th and xvi th centuries, which stands on the town of Septème in the department of Isère , in region Auvergne-Rhône-Alpes . The site focuses the ruins of a first castle of the xi th century, a speaker of the xiii th century and the present castle which dates back to the xiv th - xv th century.