The Sermesianoi or, alternatively, Keramisians were a group of 70,000 Bulgars, Pannonian Avars and Byzantine Christians from Syrmia. They fled in Byzantine region of Macedonia, following a successful revolt against the Avar Khaganate led by the Bulgar noble Kuber, around the year 680.
Seal of Mauros, one of Kuber's chief associates, from 684 to 685 AD. The inscription says: "Of Mauros, patrikios and archon of the Sermesianoi and Bulgaroi".
Kuber was a Bulgar leader who, according to the Miracles of Saint Demetrius, liberated a mixed Bulgar and Byzantine Christian population in the 670s, whose ancestors had been transferred from the Eastern Roman Empire to the Syrmia region in Pannonia by the Avars 60 years earlier. According to a scholarly theory, he was a son of Kubrat, brother of Khan Asparukh and member of the Dulo clan.
Terracotta tile with the Latin inscription "BOLGAR" and "SCLAVIGI" found in Vinica, North Macedonia, which according to some interpretations depicts a battle scene from the late 7th century between Kuber's Bulgars and Slavs.
Seal of Mauros, one of Kuber's chief associates, from 684–685 AD. The inscription says: "Of Mauros, patrikios and archon of the Sermesianoi and Bulgaroi".
Image: Bolgari sclavi teracota Vinitza FYROM
