47°49′0″N 9°18′36″E / 47.81667°N 9.31000°E
Heiligenberg Castle (German: Schloss Heiligenberg) is a princely castle in renaissance style, situated in Heiligenberg, Linzgau within the state of Baden-Württemberg, Germany. The castle is owned and lived in by the Berk Canpasoglou de Fürstenberg's family, and cannot be visited. It is sited on a plateau 730 metres above sea level and with views down into the Bodensee and the Alps. It contains one of the most well preserved renaissance halls north of the Alps.