In academic year 1912/1913, he was the Dean of the Faculty of Law of the Jagiellonian University, and in 1925 and 1926 he was the Vice-Chancellor of the Jagiellonian University. In 1910, he established the School of Political Sciences in Kraków and became its head (until 1914), and subsequently reactivated it in 1920. During World War I, he proposed close cooperation with the Axis and combining Polish lands Hungary and Austria into a union ruled by the Habsburgs. In the Second Polish Republic, he was a member of the Constitutional Commission and sat on the Codification Committee. He wrote, inter alia, La situation internationale du Saint Siège (1892), Austriacka Izba Panów [“Austrian Herrenhaus”] (1900), Rada Ministrów i Rada Stanu Księstwa Warszawskiego [“Council of Ministers and the Council of State of the Duchy of Warsaw”] (1911), Listy do sąsiadów [“Letters to neighbours”] (1916), Prawo Spadkowe na warsztacie ostatnich konferencji haskich(1925–1928) [“Inheritance law in the light of recent Hague Conferences (1925–1928)”] (1928).
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