Frederick III, Prince of Salm-Kyrburg
…times confused with a relative Johann Friedrich von Salm-Grumbach who also was styled as Rhinegrave of Salm. In 1794, he was guillotined together with Alexandre de Beauharnais, the lover of his sister Amalie Zephyrine van Salm-Kyrburg, for their ties with the "Ancien Régime". Frederick commissioned the construction of the…