House of Metternich
…of Vienna and was Minister-President of Austria from 1821 to 1848. He acquired Schloss Johannisberg in the Rheingau. Klemens' eldest surviving son, Richard von Metternich, was a diplomat and married his half-niece, Pauline Sándor de Szlavnicza (she was the daughter of Richard's half-sister, Eleonore). Richard and Pauline…