Countess Ferdinande of Erbach-Schönberg Princess of Ysenburg and Büdingen in Büdingen (1784–1848) Parents Henriette Christiane Gräfin zu Stolberg-Stolberg Gustav Ernst zu Erbach-Schönberg Children Ernst Casimir II, 2nd Prince of Ysenburg and Büdingen Prince Gustav of Ysenburg and Büdingen in Büdingen Siblings Ludewig III, Count of Erbach-Schönberg Luise Amalie Gräfin zu Erbach-Schönberg Partners Ernst Casimir I, Prince of Prince of Ysenburg and Büdingen