KKG assumed patronage of the publication of Kazimierz Przybyłowski's monograph “Klauzula rebus sic stantibus w rozwoju historycznym oraz jej renesans w dobie współczesnej" [The Rebus Sic Stantibus Clause in Historical Development and its Renaissance in Modern Times], Lviv 1926 - Warsaw 2022. It is one of the most valuable and ever-present works of Polish legal science of the interwar period, a work that has never been published in full. In a period of pandemics and war and their numerous consequences, it gains in importance, all the more so because, to this day, no study on the rebus sic stantibus clause of comparable research magnitude has been written.
Kazimierz Przybyłowski was one of the most eminent Polish civil law experts of the past century, the last of the great scholars originating from the Lviv school of private law, created by Ernest Till and continued by Roman Longchamps de Bérier. He was also the most eminent expert on conflict of laws and the creator of the Private International Law Act of 1965. The monograph contains his two studies that originally appeared in the Lviv periodicals.
