Konstanty Tyzenhauz

Lithograph c. 1844

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. He made a large collection of eggs and bird skins at his estate in Postawy (now in Belarus).