 From his second wife, Princess Maximiliane of Gavre, Marquise d'Aysseau, he inherited one billion Francs.In 1779, Prince Hermann married his third wife, the Countess Maria Antonia of Waldburg-Zeil zu Wurzach.After the transfer of the left bank of the Rhein to France as part of war reparations, he tried to find money for the beautification of Hechingen and the improvement of roads.