Boris II of Bulgaria

Tsar of the Bulgarians
Boris II, Tzar of Bulgaria

Boris II of Bulgaria was an emperor (Tsar) of Bulgaria. He was emperor from 969 to 971.[1] His father was Peter I of Bulgaria. When Peter died in 969, his son Boris was being held in Constantinople by the Byzantine Emperor Nicephorus II.[2] The Byzantines apparently allowed Boris to return to Bulgaria. When he arrived he was immediately proclaimed Tzar Boris II.[2] Sviatoslav I of Kiev, who had earlier subdued parts of Bulgaria, returned in August 969 and subdued the remaining parts of Bulgaria.[3] He allied himself to Boris II in order to get his Bulgarian soldiers to fight against the Byzantines.[3] The new Byzantine Emperor, John I Tzimisces invaded Bulgaria. By the end of 971 all of Bulgaria was in Byzantine hands.[4] By that time Boris II had abdicated.[4]


  1. The World's History: A Survey of Man's Record, ed. H. F. Helmolt (London: William Hienemann, 1907), p. 335
  2. 2.0 2.1 John Van Antwerp Fine, The Early Medieval Balkans: A Critical Survey from the Sixth to the Late Twelfth Century (Ann Arbor: University of Michigan Press, 2000), p. 182
  3. 3.0 3.1 Alexandru Madgearu, Byzantine Military Organization on the Danube, 10th-12th Centuries (Leiden; Boston: Brill, 2013), p. 30
  4. 4.0 4.1 A. P. Vlasto, The Entry of the Slavs Into Christendom: An Introduction to the Medieval History of the Slavs (London; New York: Cambridge University Press, 1970), p. 180