the principal Polish negotiators for the Concordat of 1925. After Piłsudski's May Coup in 1926 he distanced himself from politics and concentrated on academic research into economics. Before the Second World War, he was a professor at the Lwów University, Dublany Agricultural Academy, and Jagiellonian University. When the Soviet Union took control of Eastern Poland (Kresy) in 1939, following the Invasion of Poland, Grabski was arrested by the Soviets and imprisoned, like many prominent Polish intellectuals. Following the Sikorski-Mayski Agreement, he was released and moved to London, where he joined the Polish government in exile. He returned to Poland in 1945. Working closely together with Polish communist Wanda Wasilewska, Grabski (who referred to Stalin as "the greatest realist of all") sought to use Stalin to create a compact and ethnically homogenous Poland and helped to design a program for implementing policies to insure an ethnically pure Polish state. He proposed Polish and Ukrainian resettlement plans to Stalin, and traveled to Lviv in order to urge Poles to leave. He became one of the deputies to the president of the quasi-parliament State National Council, until the new Sejm was elected in the 1947 Polish legislative election. Afterwards he returned to his teaching career, becoming a professor at the University of Warsaw. He died in Sulejówek and was buried at Powązki Cemetery in the family grave of the Grabski family. Views Grabski was an outspoken exponent of nationalist ideology in the interwar period. Agreeing with Roman Dmowski on the goal of assimilating the non-Polish population of the Kresy, Grabski differed in his approach. Whereas Dmowski apparently sought to recognize Ukrainians and Belorussians as folk variants of Poles, Grabski's approach was to reduce the non-Polish population to the status of second-class citizens and limiting their contact with the Polish majority. By creating a contrast between an advanced Polish culture and a primitive minority culture Grabski hoped that long term assimilation would be assured. Family In 1895, Grabski married Ludmiła Rożen. The couple had five children – three daughters (Feliksa, Ludmiła, Janina) and two sons (Stanisław and Zbigniew). Stanisław died in 1920 during the Polish-Soviet War. Zbigniew (1907–1943) was a scoutmaster, jailed until 1941 by Soviets, he died as a result of an accident during his military duties. After the death of his wife in 1915, Stanisław Grabski married Zofia Smolikówna in 1916. They had two daughters – Anna (born 1919) and Stanisława (1922–2008).