V. M. Ploshchansky — researcher of the history of Galician Rus and Kholm Rus (a review of unpublished materials from the manuscript collection of the researcher in Vilnius)

The article provides a general overview of the extensive manuscript heritage of one of the most prominent figures of Eastern Galicia who migrated to the Russian Empire in the XIX century — Venedikt Mikhailovich Ploshchansky (1834–1902). After being forced to leave Lviv with his family in fear of political persecution, in the spring of 1888 he became a member of the Vilna Commission for the Analysis and Publication of Ancient Acts. Here, in Vilna, he spent the last 14 years of his life, actively working, among other things, on the basis of the sources that he had collected on the territory of the Austro-Hungarian Empire. All these numerous materials, as well as the personal archive of the researcher, were apportioned after his death by a number of indigenous repositories. The main part of them immediately end up in the Vilna Public Library, although in scattered form. For a very long time, starting from the 1970s, we have been searching and analyzing the handwritten documents collected and compiled by V. M. Ploshchansky, including extensive handwritten notes and additions left by the researcher on the pages of books from his library, which appeared in various public and private collections.