page_title: Sermon (duke)
hierarchical_section_title: Sermon (duke)
caption_attribution_description: English: Duchies of Ahtum and Sermon in the 11th century.Српски / srpski: војводства Ахтума и Сермона у 11. веку
context_page_description: Sermon 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. He was described in Byzantine sources as: "ruler of Syrmia and brother of Nestongos".
context_section_description: 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).
caption: Voivodship of Sermon.
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