Konstanty Tyzenhauz

Count Konstanty Tyzenhauz (Lithuanian: Konstantinas Tyzenhauzas; 3 June 1786 – 16 March 1853) was a Polish-Lithuanian nobleman, naturalist, artist, and patron of ornithology in Poland and Lithuania.

French was a second language in the Polish-Lithuanian artistocracy and his correspondents included Félix Édouard Guérin-Méneville (1799-1874).

He was awarded a Officer's Cross of the Legion of Honor on August 10, 1813, and he continued to live in Clermont not returning to Lithuania until the Tsar declared an amnesty for former soldiers of the Grand Army.

A trained artist (a student of Jan Piotr Norblin), he also illustrated plates for books by Władysław Taczanowski.

After his death, the zoological collections (with 1093 skins and 563 eggs) were donated by his son Rajnold Tyzenhauz (1830-1880) to the Archaeological Commission of Vilnius and became part of the Museum of Antiquities.