Zaręczenie Wzajemne Obojga Narodów – w 220. rocznicę uchwalenia

Present article concerns an unfading controversy about politico-legal meaning of an act of the Mutual Engagement of Both Nations and its interpretation in the context of the fundamental rights of the Polish-Lithuanian Commonwealth, which were enacted in this times, especially the Constitution of the Third May. The contents of the essay makes an order and sums the long-term discussion on the mentioned act, between proponents and opponents of the thesis, which says, that it means the end of the polish-lithuanian political union. The Author, on the base of the analysis of the historical sources, presents his own view, in which sums previous discussion and tries to fi nally resolve the problem