Wilhelm von Perponcher-SedlnitzkyFrom Wikipedia, the free encyclopedia Count Wilhelm Heinrich Ludwig Arend von Perponcher-Sedlnitzky (17 July 1819 – 24 June 1893) was a Dutch-German diplomat.
Count Wilhelm Heinrich Ludwig Arend von Perponcher-Sedlnitzky (17 July 1819 – 24 June 1893) was a Dutch-German diplomat.