Tervel of Bulgaria
Bulgarian ruler
Tervel (Bulgarian: Тервел), also called Tarvel, Terval, or Terbelis in Byzantine sources, was the ruler of Bulgaria during the First Bulgarian Empire at the beginning of the 8th century. In 705 Emperor Justinian II named him caesar, the first foreigner to receive this title. He was raised a pagan like his grandfather Khan Kubrat, but was later possibly baptised by the Byzantine clergy. Tervel played an important role in defeating the Arabs during the siege of Constantinople in 717–718. The Nominalia of the Bulgarian khans states that Tervel belonged to the Dulo clan and reigned for 21 years. The testimony of the source and some later traditions allow identifying Tervel as the son of Asparukh.
Alliance with Justinian II
Tervel is first mentioned in the Byzantine sources in 704, when he was approached by the deposed and exiled Byzantine emperor Justinian II. Justinian acquired Tervel's support for an attempted restoration to the Byzantine throne in exchange for friendship, gifts, and his daughter in marriage. With an army of 15,000 horsemen provided by Tervel, Justinian suddenly advanced on Constantinople and managed to gain entrance into the city in 705. The restored emperor executed his supplanters, the emperors Leontius and Tiberius III, alongside many of their supporters. Justinian awarded Tervel with many gifts, the title of kaisar (caesar), which made him second only to the emperor and the first foreign ruler in Byzantine history to receive such a title, and a territorial concession in northeastern Thrace, a region called Zagora.
Begin with the source’s own compact description: “Tervel of Bulgaria” is bulgarian ruler. The dossier treats that line as a proposition to test through Tervel, Bulgaria and Bulgarian, not as a finished interpretation.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 13, 2026. The linked authority identifier is Q311506. VIAF identifies the subject as 90886289. The Library of Congress control number is n2014038871. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Tervel of Bulgaria” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.