Bihar was a

Khagan Khagan or Qaghan (Middle Mongol:; or ''Khagan''; ) or zh, c=大汗, p=Dàhán; ''Khāqān'', alternatively spelled Kağan, Kagan, Khaghan, Kaghan, Khakan, Khakhan, Khaqan, Xagahn, Qaghan, Chagan, Қан, or Kha'an is a title of empire, im ...

of the

Khazars The Khazars ; 突厥可薩 ''Tūjué Kěsà'', () were a nomadic Turkic people who, in the late 6th century CE, established a major commercial empire covering the southeastern section of modern European Russia, southern Ukraine, Crimea, a ...

during the 730s. Bihar succeeded Barjik as the Khagan in 732, most likely after a regency under Parsbit, indicating that Bihar was underage at the time. However some sources claim that Khazars practiced

regicide Regicide is the purposeful killing of a monarch or sovereign of a polity and is often associated with the usurpation of power. A regicide can also be the person responsible for the killing. The word comes from the Latin roots of ''regis'' ...

which makes it impossible for an infant-khagan to rule. Bihar was the father of Tzitzak, the Khazar princess who married the son of

Byzantine The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the events that caused the fall of the Western Roman E ...

Emperor Leo III who later ruled as

Constantine V Constantine V (; July 718 – 14 September 775) was Byzantine emperor from 741 to 775. His reign saw a consolidation of Byzantine security from external threats. As an able military leader, Constantine took advantage of Third Fitna, civil war ...

. Bihar was thus the grandfather of Emperor Leo IV the Khazar. He is called ''Viharos'' in

Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...

n sources.

References

Khazar rulers 8th-century monarchs in Europe {{Europe-royal-stub