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Sermon (Greek: Σέρμων; Bulgarian and Serbian Cyrillic: Сермон) was an early 11th-century voivode (duke) of Syrmia and a local governor in the First Bulgarian Empire, vassal of Bulgarian emperor Samuil. His residence was in Sirmium (today Sremska Mitrovica, Serbia). He was described in Byzantine sources as: "ruler of Syrmia and brother of Nestongos" (Greek: ὁ τοῦ Σιρμίου κρατῶν ἀδελφὸς τοῦ Νεστόγγου).[1]
- ^ Коматина & Коматина 2018, pp. 144.