Previously unknown medieval archbishopric discovered in Bulgaria

Bulgarian archaeologist Nikolay Ovcharov has discovered two archbishop's seals during excavations of the city of Perperikon, a crucial urban center during the Middle Ages and the Byzantine and Bulgarian Empires. The two lead seals belonged to Constantine, Archbishop of Archidos.

The Archidos Archbishopric is believed to have existed in the 10th-12th century in the Rhodope Mountains region, today's Southern Bulgaria, centered in Perperikon, Hyperperakion in ancient times and the Middle Ages. Ovcharov feels that the discoveries show that Perperikon was a powerful Christian center from the 4th through 14th centuries.