The life of Stefan Lech Sokołowski spanned from his 1904 birth in Warsaw to his death in the spring of 1940 at Katyn. A specialist in logic and foundations, he balanced his academic pursuits with service in the Polish Land Forces, eventually serving as a lieutenant of artillery before his life was cut short by the Soviet massacre.
Early life and military service
Born to Witold Sokołowski, a railway engineer, and writer Anna Maria Sokołowska, Sokołowski spent his early youth in Myślenice. Before he turned fifteen, he participated in the defense of Lviv during the Polish-Ukrainian War as a member of the Lwów Eaglets. Following this period of conflict, he pursued higher education at the University of Warsaw, where he eventually earned a doctorate in mathematical sciences.
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During the interwar period, Sokołowski applied his mathematical expertise at the Ballistic Research Center in Rembertów. His professional trajectory intersected with rigorous military training; in 1933, he graduated from the School Reserve Officer Cadet Artillery in Włodzimierz. By 1 January 1935, he held the rank of porucznik, or lieutenant. In 1939, he joined the staff of OK I.
Personal life and final years
Sokołowski married Cecylia Benisz in 1931, and the couple had one daughter, Krystyna, born in 1935. His family circle included three sisters: Maria Danuta Żelazowska, Grażyna Lipińska, and Stefania Żelazowska. In the spring of 1940, while serving in the military, he was murdered by the NKVD during the Katyn massacre, a series of mass executions involving nearly 22,000 Polish officers and prisoners of war.
Posthumous honors
Decades after his death in the Katyn forest, Sokołowski received formal recognition from the Polish government in exile. On 11 November 1976, he was awarded the Silver Cross of the Virtuti Militari, numbered 14384, as part of a collective posthumous honor granted to victims of the massacre. Additionally, he received the Cross of the September Campaign 1939 on 1 July 1986.
Fast facts
- Born: 25 May 1904, Warsaw
- Died: Spring 1940, Katyn
- Field: Logic and foundations
- Education: University of Warsaw
- Military Rank: Lieutenant of artillery
- Spouse: Cecylia Benisz
- Notable honor: Silver Cross of the Virtuti Militari
- Burial site: Katyn Polish War Cemetery
Questions readers ask
What was Stefan Lech Sokołowski's role in the military?
He was a lieutenant of artillery in the Polish Land Forces and served on the staff of OK I in 1939.
How was his death officially recognized?
He was a victim of the 1940 Katyn massacre and was later awarded the Silver Cross of the Virtuti Militari and the Cross of the September Campaign 1939.



