Personal data
Cornelius de Perponcher-Sedlnitzky
Born May 3, 1733  
at 's-Gravenhage
Died October 27, 1776  
at Zuilen
where he drowned
Cornelis, Baron de Perponcher Sedlnitsky

Son of Count Jacob Arent de Perponcher-Sedlnitzky and Jacoba Maria van Wassenaer. Married (1763) to Johanna Maria van Tuyll van Serooskerken, younger sister of Belle de Zuylen. He drowned in 1776.

He was a sometime justice in the supreme court of the province of Holland, and father of Hendrik George de Perponcher Sedlnitsky (1771-1856), a Dutch general and diplomat who commanded an army division at the battle of Waterloo (1815).

Boswell made a note to visit Perponcher on May 12, 1764. It is unclear whether they had met before this day.

    Unless otherwise noted, the source for a dated quotation of Boswell's is generally the corresponding volume of the Yale Trade Editions of Boswell's journals.