Sermon (duke)

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History of Vojvodina
Ancient Times Pannonia Pannonia Inferior Pannonia Secunda Dacia Dacia Felix Dacia Superior Diocese of Pannonia Diocese of Illyricum Prefecture of Illyricum
Early Middle Ages Gepid Kingdom Byzantine Pannonia Domain of Kuber Avar Khaganate Domain of župan Butaul Voivodeship of Salan Voivodeship of Glad Voivodeship of Ahtum Voivodeship of Sermon Theme Sirmium
High Middle Ages Kingdom of Hungary Medieval Syrmia Medieval Banat Realm of Stefan Dragutin King Stefan Dragutin King Stefan Vladislav II Domain of Ugrin Csák Zmaj Ognjeni Vuk Đorđe Branković Jovan Branković Ivaniš Berislavić Stefan Berislavić Jovan Nenad Radoslav Čelnik Radič Božić Pavle Bakić
Early Modern Times Temeşvar Eyalet Sanjak of Syrmia Sanjak of Segedin Banate of Lugos and Karánsebes Banat of Temeswar District of Potisje District of Velika Kikinda
Modern Times Serbian Vojvodina Voivodeship of Serbia and Temes Banat Bács-Bodrog County Syrmia County Kingdom of Croatia-Slavonia Torontál County Temes County Banat Republic Banat, Bačka and Baranja Danube Banovina Banat (1941–1944) Autonomous Province of Vojvodina (1945-1963) Socialist Autonomous Province of Vojvodina (1963-1990) Autonomous Province of Vojvodina
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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]