A new history of the Kyivan Rus, a medieval dynastic state in eastern Europe.   Kyivan Rus' was a state in northeastern Europe from the late ninth to the mid-sixteenth century that encompassed a variety of peoples, including Lithuanians, Polish, and Ottomans. The Ruling Families of Rus explores the region's history through local families, revealing how the concept of family rule developed over the centuries into what we understand as dynasties today. Examining a broad range of archival sources, the authors examine the development of Rus, Lithuania, Muscovy, and Tver and their relationships with the Mongols, Byzantines, and others. The Ruling Families of Rus will appeal to scholars interested in the medieval history of eastern Europe.