Frederick III John Otto Francis Christian Philip, prince of Salm-Kyrburg, Hornes and Overijse, Gemen and Count of Solre-le-Château. Frederick was the eldest son of Philip Joseph, Prince of Salm-Kyrburg and Princess Maria Theresa of Hornes. He grew up at the French court. Through his mother, the eldest daughter of Maximilian, Prince of Hornes, he inherited all the possessions of the Hornes family. He held the title from 1779 to 1794.