caption: The image shows a poster of the coat of arms of Hardenberg-Reventlow, featuring two men standing and holding sticks in their hands, with text at the bottom. The men are wearing traditional clothing, with one of them wearing a crown and the other wearing a long robe. The background of the poster is a deep blue, with a golden border around the edges. The text on the poster reads "Hardenberg Reventlow Coat of Arms".