Cornelius de Perponcher Sedlnitsky (1733-1776) (1733–1776) Parents Jacob Arent de Perponcher-Sedlnitzky Children Hendrik George de Perponcher Sedlnitsky Arend Jacob Diederik de Perponcher Sedlnitsky Willem Karel de Perponcher Siblings Willem de Perponcher Sedlnitzky Partners Johanna Maria van Tuyll van Serooskerken