Documentary Sources on the History of Rus' Metropolitanate contains an extensive collection of letters and documents relating to the late medieval Orthodox Church, edited and curated by the renowned medievalist Andrei Pliguzov. This volume includes acts, edicts, and decrees regarding the lands in the metropolitanate's jurisdiction; reports prepared for the metropolitans by their secretariat; and the letters of the hierarchs themselves. These documents pertain to all aspects of the metropolitanate's activity and reflect the various concerns and debates that defined the life of the Church and its relations with other religious entities and the secular leaders.