History of the Byzantine Empire Volume 4: The Komnenoi Dynasty to the Fourth Crusade (Based Books Exclusive Editions) Paperback – August 6, 2025

VOLUME 4 of 5For the first time in English the complete five volume history:History of the Byzantine EmpireVolume IV: The Komnenoi Dynasty to the Fourth Crusadeby Fyodor UspenskyThe fourth volume of Fyodor Uspensky’s monumental History of the Byzantine Empire traces the rise of the Komnenoi dynasty and the empire’s final century as a unified political force, culminating in the dramatic fall of Constantinople during the Fourth Crusade in 1204.Beginning with the reign of Emperor Alexios I Komnenos, Uspensky explores the efforts to stabilize and restore imperial strength after decades of crisis. The empire faced fierce external pressure from the Normans, Pechenegs, and Seljuk Turks, while Alexios initiated broad administrative and military reforms. His reign also brought Byzantium into direct contact with the First Crusade, launching a new and uneasy phase in East-West relations.The narrative follows the reigns of John II and Manuel I Komnenos, a period marked by renewed military ambition, shifting alliances, and expanded diplomatic outreach to Latin, Slavic, and Islamic powers. Uspensky provides in-depth analysis of the empire’s foreign and domestic challenges, from the Balkans and Syria to the Adriatic and the Holy Land.Despite a surface revival, the Komnenian state suffered growing internal strain. The final chapters chart the erosion of central authority, the rise of separatist movements in Serbia and Bulgaria, and the disastrous course of the Third and Fourth Crusades, which culminated in the sack of Constantinople and the dismemberment of the empire.Drawing from a wide range of sources and written with scholarly precision, this volume offers a comprehensive and authoritative account of Byzantium’s last period of strength—and the forces that led to its fragmentation at the hands of fellow Christians.Whether you're a scholar, student, or general reader of medieval history, this edition provides essential insight into one of the most consequential turning points in Byzantine and European history. Read more