The project involves the collection of written sources (especially from the different archives and libraries) relative to the history of Halych and Galicia until 1772. At first, it’s important to visit the National Archive of Romania (Arhivele Statului) in Bucharest and the National Library of Romania (Biblioteca Națională a României). The collective of the scholars of Centrum Studiorum Mediaevalium led by me provides a comprehensive study of the history of Halych and Galicia.