Elisabeth of Cleves, Countess of Schwarzburg-Blankenburg German noble (1420–1488) Parents Marie of Burgundy Adolph I Children Günther XXXIX of Schwarzburg Günther XXXVIII van Schwarzburg Günther XXXVI van Schwarzburg Hendrik XXVII van Schwarzburg Siblings Helen of Cleves John I, Duke of Cleves Maria of Cleves Catherine of Cleves Agnes of Cleves Adolph of Cleves, Lord of Ravenstein Margaret of Cleves, Duchess of Bavaria-Munich Anna von der Mark-Kleve Engelbert von der Mark-Kleve Partners Heinrich XXVI von Schwarzburg