Ernst Casimir I, Prince of Prince of Ysenburg and Büdingen (1781-1852) (1781–1852) Parents Eleonore of Bentheim and Steinfurt Ernst Casimir Graf zu Ysenburg und Büdingen in Büdingen Children Prince Gustav of Ysenburg and Büdingen in Büdingen Ernst Casimir II, 2nd Prince of Ysenburg and Büdingen Partners Countess Ferdinande of Erbach-Schönberg
