Adam Próchnik
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Adam Feliks Próchnik was a Polish socialist activist, politician and historian.
Próchnik's Warsaw grave
A plaque commemorating Próchnik, on Adam Próchnik Street in Old Żoliborz
Kazimierz Bartel
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Kazimierz Władysław Bartel was a Polish mathematician, freemason, scholar, diplomat and politician who served as 15th, 17th and 19th Prime Minister of Poland three times between 1926 and 1930 and a Se
Bartel in 1929
Prime Minister Kazimierz Bartel, 1928
Bartel (right) with Marshal of the Sejm Ignacy Daszyński, 1929
Bartel's fifth cabinet, December 1929. In center: Józef Piłsudski and Ignacy Mościcki.