The Byzantine civil war of 1341–1347 was a conflict that broke out after the death of Andronikos III Palaiologos over the guardianship of his nine-year-old son and heir, John V Palaiologos. It pitted on the one hand Andronikos III's chief minister, John VI Kantakouzenos, and on the other the Empress-Dowager Anna of Savoy, the Patriarch of Constantinople John XIV Kalekas, and the megas doux Alexios Apokaukos. The war polarized Byzantine society along class lines, with the aristocracy backing Kantakouzenos and the lower and middle classes supporting the regency. To a lesser extent, the conflict acquired religious overtones. Byzantium was embroiled in the Hesychast controversy, and adherence to the mystical doctrine of Hesychasm was often equated with support for Kantakouzenos. The consequences of the prolonged conflict proved disastrous for the Empire, which had regained a measure of stability under Andronikos III. Seven years of warfare, the presence of marauding armies, social turmoil, and the advent of the Black Death devastated Byzantium and reduced it to a rump state. (Full article...)