The commented judgment concerns issues related to the temporal scope of application of the EU Succession Regulation No. 650/2012, resulting from the provisions of Art. 83 (1) of the Regulation, the provision according to which this act "shall apply to the succession of persons who die on or after 17 August 2015". The complainant in the case assumed that the word "succession" used in the above article did not cover the sharing–out of the estate, which would mean that the norms contained in the Regulation regarding the determination of the court’s jurisdiction over inherited property located abroad and included in the estate could be applied to these actions regardless of the date of the testator's death, and therefore also to persons who died before 17 August 2015. The Supreme Court rejected such an interpretation extending the temporal scope of application of the Regulation, drawing attention to the necessity of taking into account the remaining provisions of this legal act regarding its material scope and being guided by the conviction that it is erroneous to transfer national concepts (the term "succession" as it is understood in the provisions of the Polish Civil Code) into the space of European law, which has its own conceptual network ‒ within the scope of its application having precedence over national law and therefore the concepts of national law.