The research of the trend of expanding the scope of application of the party autonomy in private international law is presented using the example of considering the features of the regulation of family and inheritance relations, complicated by a foreign ele-ment. The emphasis is on the study of the norms of law of the Russian Federation and the law of the European Union, but is not limited to these sets of norms. An analysis of the party autonomy is conducted at a theoretical level: a definition of the concept is given, a criticism of the application of this legal structure is briefly considered. The features of the functioning of the party au-tonomy in regulating family and inheritance relations are studied, indicating the limits of the rules on the choice of law. It is con-cluded that the party autonomy in private international law tends to expand the substantive scope of action, however, the speci-ficity of the relations regulated by it determines the current limitations on the application of this legal structure.

private international law, party autonomy, foreign element, theoretical analysis, modern trends in private international law

Moskvitin Yuriy Mikhailovich – Postgraduate, Department of Civil Law and Procedure and Private International Law, Law Insti-tute, Peoples’ Friendship University of Russia named after Patrice Lumumba (6, Miklouho-Maclay st., Moscow, 117198, Russian Fed-eration), ORCID: 0009-0005-7771-8074, RSCI AuthorID: 1240936, e-mail: mister.moskvitin@yandex.ru

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