According to John Skylitzes, Sfengus or Sphengos was a brother of Knyaz Vladimir I of Kiev. Sfengus was a leader in the joint Byzantine-Kievan campaign to depose Georgius Tzul, the last recorded khagan of the Khazars. Though identified as a brother of Vladimir I of Kiev, some historians such as Simon Franklin and Jonathan Shepard hypothesize that he is identical with Mstislav of Tmutarakan, Vladimir's son.
Franklin, Simon and Jonathan Shepard. The Emergence of Rus 750-1200. Longman, 1996.
|This Ukrainian biographical article is a stub. You can help Infogalactic by expanding it.|
|This Russian biographical article is a stub. You can help Infogalactic by expanding it.|