Kasper Doenhoff

Kasper D(o)enhoff (German: Kaspar von Dönhoff, Polish: Kacper Denhoff, 1587–1645) was a Baltic-German noble (Reichsfürst) of the Holy Roman Empire; a noble (szlachcic) of the Polish-Lithuanian Commonwealth; Governor of Dorpat Province; and a courtier and diplomat of the Polish-Lithuanian Commonwealth.

Kasper Doenhoff was a Polish noble (szlachcic) of the Denhoff coat-of-arms; he was born a member of the Denhoff family, a Polish noble family of East Prussian origin (the German family name is Dönhoff).

He became titularly 'Governor of Dorpat' (1627–34) (although already in 1625 the town had capitulated to Sweden and was never reobtained by the Poles); from 1633, Count of the Holy Roman Empire (along with Ernst and Gerhard Dönhoff); Governor of Sieradz (1634–45); court marshal of the Queen (from 1639); and starosta of Wieluń, Lauenburg (Lębork), Radomsko, Bolesławiec, Sokal, Małoszyce, Sobowidze and Klonowo.

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