Leon Tadeusz Kozłowski (; 6 June 1892 – 11 May 1944) was a Polish archaeologist, freemason and politician who served as Prime Minister of Poland from 1934 to 1935. Biography Leon Kozłowski was born in 1892 in the village of Rembieszyce near Małogoszcz. Prior to 1914 he moved with his family to Lwów in Galicia (now Lviv, Ukraine), where he joined the local university. He also joined the Riflemen Union and Association of Progressive Youth. After the outbreak of the Great War he joined Józef Piłsudski's Polish Legions, where he served in the 1st Uhlans Regiment. After the Oath Crisis of 1917 he joined the Polish Military Organization and organized the cadres of the future Polish Army. When Poland regained her independence in 1918, Kozłowski volunteered for the Polish Army and served with distinction during the Polish-Bolshevik War. Afterwards he was demobilized and returned to Lwów, where he completed his studies at the University of Jan Kazimierz. In 1921 he became a professor there and the head of the Faculty of Pre-history. He held that post between 1921 and 1931 and then again between 1935 and 1939. He was also active in various social and political organizations, including the Society for the Repair of the Republic. As such, following a military coup in 1928 he got involved in the BBWR movement and the same year he was elected to the Sejm. He held the post of a Member of Parliament until 1935, when he was chosen to the Senate of Poland. During his political career he held various posts in several governments led by the Sanacja movement. He was responsible for the establishment of the prison camp at Bereza Kartuska. Between 1930 and 1935 he was the minister of agrarian reforms. At the same time, between 1932 and 1933 he was a sub-secretary of state in the Ministry of Treasury. Finally, on 15 May 1934, Kozłowski became the Prime Minister of Poland. He held that post until 28 March 1935, when he was replaced by Walery Sławek. On the insistence of Piłsudski, all of the ministers of Kozłowski's government were included in the new government. After death of Marshal of Poland Józef Piłsudski, Kozłowski remained an active politician for some time. He was seen as a representative of the leftist part of the Sanacja movement and a supporter of Walery Sławek. However, the latter lost the race to Piłsudski's heritage