...In 668, Batbayan engaged in wars with his relative Cozrig and was temporarily driven into Crimea. Cozrig's Khazars attacked and eventually took the steppes between Don and the Ural, according to the treaty of 668 between Batbayan and the Khazar Khagan (Kaban) under which Batbayan and his sister Huba were taken prisoners. Western Bulgar warriors adopted the practice of wearing Martenitsas in battle to remind them of the sacrifice of their ancestral relatives Batbayan and Huba. Read full entry

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