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The topic Omortag is discussed in the following articles:

role in Byzantine Empire

  • TITLE: Byzantine Empire (historical empire, Eurasia)
    SECTION: Constantine’s weak successors
    ...victim to assassination, but before his death events beyond his control had improved the empire’s situation. Krum died suddenly in 814 as he was preparing an attack upon Constantinople, and his son, Omortag, arranged a peace with the Byzantine Empire in order to protect the western frontiers of his Bulgar empire against the pressures exerted by Frankish expansion under Charlemagne and his...

treaty conclusion with Leo V

  • TITLE: Leo V (Byzantine emperor)
    Meanwhile, Krum, the Bulgarian khan, had reached the walls of Constantinople. Leo succeeded in drawing him back and concluded a treaty with Krum’s successor, Omortag, that determined the boundary between the two countries and provided a 30-year peace. In the ʿAbbāsid caliphate the troubles following the death of the caliph Hārūn al-Rashīd in 809 continued to provide...

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