About Kazimierz Leski
Kazimierz Leski, nom de guerre Bradl, was a Polish engineer, co-designer of the Polish submarines ORP Sęp (1938) and ORP Orzeł, a fighter pilot, and an officer in World War II Home Army's intelligence and counter-intelligence. His career in Dutch shipbuilding was sped up by the Netherlands having won a contract to build two modern Orzeł class submarines for the Polish Navy. Thus Leski– still suffering from wounds received in September 1939 and unfit for front-line service in the Forest Units– became a leading intelligence officer with the Musketeers and later with the Home Army.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.