Katharina Friederike Wilhelmine Benigna, Princess of Courland, Duchess of Sagan ; died 29 November 1839 in Vienna, Austrian Empire) was a German noble from the ruling family of Courland and Semigallia and a Duchess of Sagan. Wilhelmine is mainly known for her relationship with Klemens Metternich, a statesman of the Austrian Empire.
- Occupation
- salonnière, writer
- Citizenship
- Kingdom of Prussia, Russian Empire
- Born
- February 8, 1781
- Died
- November 29, 1839