Before revision: It is believed that the tradition endured in the eleventh century, as the metropolitan bishop of Kiev in the Kievan Rus', Hilarion of Kiev, calls both grand prince Vladimir I of Kiev (978–1015) and grand prince Yaroslav the Wise (1019–1054) by the title of kagan, while a graffito on the walls of Saint Sophia's Cathedral gives the same title to the son of Iaroslav, grand prince Sviatoslav II of Kiev (1073–1076)
After revision: It is believed that the tradition endured in the eleventh century, as the metropolitan bishop of Kyiv in the Kievan Rus', Hilarion of Kiev, calls both grand prince Vladimir the Great (978–1015) and grand prince Yaroslav the Wise (1019–1054) by the title of kagan, while a graffito on the walls of Saint Sophia's Cathedral gives the same title to the son of Iaroslav, grand prince Sviatoslav II of Kiev (1073–1076)