Leo IV | |
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Gold solidus of Leo IV and his son Constantine VI (obverse), with busts of his grandfather Leo III the Isaurian and his father Constantine V in the reverse
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Emperor of the Byzantine Empire | |
Reign | 14 September 775 – 18 June 780 |
Predecessor | Constantine V |
Successor | Constantine VI |
Born | 25 January 750 |
Died | 8 September 780 (aged 30) |
Consort | Irene |
Issue | Constantine VI |
Dynasty | Isaurian Dynasty |
Father | Constantine V |
Mother | Tzitzak (Irene of Khazaria) |
Isaurian or Syrian dynasty | |||
Chronology | |||
Leo III | 717–741 | ||
with Constantine V as co-emperor, 720–751 | |||
Constantine V | 741–775 | ||
with Leo IV as co-emperor, 751–775 | |||
Artabasdos' usurpation | 741–743 | ||
Leo IV | 775–780 | ||
with Constantine VI as co-emperor, 776–780 | |||
Constantine VI | 780–797 | ||
under Irene as regent, 780–790, and with her as co-regent, 792–797 | |||
Irene as empress regnant | 797–802 | ||
Succession | |||
Preceded by Twenty Years' Anarchy |
Followed by Nikephorian dynasty |
Leo IV the Khazar (Greek: Λέων Δ΄ ὁ Χάζαρος, Leōn IV ho Khazaros) (25 January 750 – 8 September 780) was Byzantine Emperor from 775 to 780 AD.
Leo was the son of Emperor Constantine V by his first wife, Irene of Khazaria (Tzitzak), the daughter of a Khagan of the Khazars (thought to be Bihar). He was crowned co-emperor by his father in 751. Leo was betrothed to Gisela, daughter of Pepin the Short but the contract was broken. Leo then married Irene, an Athenian from a noble family, in December 769. In 775 Constantine V died, leaving Leo as sole emperor.
On 24 April 776 Leo, following the precedent set by his father and grandfather, appointed his son, Constantine VI, co-emperor. This led to an uprising of Leo’s five half-brothers, including Caesar Nikephoros, who had hoped to gain the throne themselves. The uprising was put down quickly, with the conspirators being beaten, tonsured, and exiled to Cherson under guard.
Leo IV was raised as an iconoclast under his father but was married to Irene, an iconodule. Realizing the division in his realm he pursued a path of conciliation towards the iconodules, previously declared heretical under imperial policy. Leo allowed monks, persecuted and deported under his father, to return to their monasteries, and he was anointed by some among the clergy as “Friend to the Mother of God” for allowing monks to retain images of the Theotokos. In addition to the concessionary actions Leo also appointed an iconophile sympathizer, Paul of Cyprus, to the position of patriarch of Constantinople upon the death of the predecessor. At the end of his reign, Leo reversed his stance of toleration.