Abstract
The purpose of the publication is to find out the circumstances of the emergence of the Roman Catholic Dominican monastic order on the territory of the Galicia-Volyn principality (Russian Kingdom) and its efforts to consolidate in these lands. General scientific methods (comparison, analysis) are used as a research methodology. In preparation for publication, the leading methods were historical-comparative, synchronous and retrospective. The use of these scientific methods made it possible to analyze the sources and draw conclusions about the scientific problem. The scientific novelty of the study is that the researcher attempted to analyze available sources and formed historiographical narratives about the emergence of the Dominican Order in the Galicia-Volyn principality in general and in Lviv in particular. Conclusions. The emergence of the Dominican Order in the 13-th – 14-th centuries in the territory of the n kingdom was not accidental. The missions of the spiritual order served for the penetration of the Roman Catholic clergy, the establishment of missionary centers and were preparation for the establishment of a permanent church administration in the lands of the Galicia-Volyn principality. The expansion of the Order's network was closely linked to the growth of the urban network and the intensification of the migration processes of the urban Roman Catholic population from German and Polish lands. The issue of religion played an important role in the diplomacy of the Galician-Volyn princes and Polish kings of this period. Balancing between the Catholic and "steppe" worlds, the princes of the Russian kingdom were forced to compromise and give permission for the establishment of Roman Catholic centers in Lviv and other cities. The Dominican Order actively led the penetration of Catholicism and the influence of the Apostolic See in Rome on the territory of Kyiv Rus.