10th Century Lead Seal of Bulgarian Tsar Petar I Discovered by Locals in Field near Medieval Fortress Rusocastro
A lead seal of St. Tsar Petar I (r. 927-970 AD), one of the most notable rulers of the First Bulgarian Empire (632/680-1018 AD), has been discovered by locals in a field near the medieval fortress Rusocastro, Kameno Municipality, Burgas…
