Background
He was the son of Wojciech Kętrzyński from Lötzen (Lec), East Prussia, an Austrian citizen with Kashubian and Masurian ancestors, who became a Polish scholar.
He was the son of Wojciech Kętrzyński from Lötzen (Lec), East Prussia, an Austrian citizen with Kashubian and Masurian ancestors, who became a Polish scholar.
During the Second World War Stanisław Kętrzyński was a prisoner in the German concentration camp Auschwitz. Among his students were Stanisław Arnold, Aleksander Gieysztor, Jadwiga Karwasińska and Adam Wolff.