Leo de Byzantie, III, 'the Isaurian'

Leo de Byzantie, III, 'the Isaurian'

Male Abt 685 - 741  (~ 56 years)    Has no ancestors but 19 descendants in this family tree.

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  • Name Leo de Byzantie 
    Suffix III, 'the Isaurian' 
    Relationshipwith Francis Fox
    Born Abt 685  Germanikeia, Commagene, Syria Find all individuals with events at this location 
    Gender Male 
    Died 18 Jun 741 
    Person ID I490631  Geneagraphie
    Last Modified 10 Nov 2009 

    Family Maria,   d. Yes, date unknown 
    Children 
    +1. Constantine de Byzantie, V,   b. 718,   d. 14 Sep 775  (Age 57 years)
     2. Anna de Byzantie,   b. Aft 705,   d. Aft 743  (Age ~ 38 years)
     3. Irene de Byzantie,   d. Yes, date unknown
     4. Kosmo de Byzantie,   d. Yes, date unknown
    Last Modified 1 Nov 2009 
    Family ID F197181  Group Sheet  |  Family Chart

  • Photos
    Leo de Byzantie, III, 'the Isaurian'
    Leo de Byzantie, III, 'the Isaurian'

  • Notes 
    • Byzantine emperor from 717 until his death in 741.
      He put an end to a period of instability, successfully defended the empire against the invading Arabs , and adopted the religious policy of Iconoclasm .

      Leo, whose original name was Konon, was born in Germanikeia (Maras ) in the Syrian province of Commagene . His family had been resettled in Thrace , where he entered the service of Emperor Justinian II , when the latter was advancing on Constantinople with an army of 15,000 horsemen provided by Tervel of Bulgaria in 705.
      After the victory of Justinian II, Leo was dispatched on a diplomatic mission to Lazica to organize an alliance against the Umayyad Caliphate under Al-Walid I . Leo was appointed commander (strategos ) of the Anatolic theme by Emperor Anastasios II . On his deposition Leo joined with his colleague Artabasdos , the strat of the Armeniac theme, in conspiring to overthrow the new Emperor Theodosios III .

      Leo entered Constantinople on March 25 , 717 and forced the abdication of Theodosios III, becoming emperor as Leo III. The new emperor was immediately forced to attend to the Second Arab siege of Constantinople , which commenced in August of the same year. The Arabs were Ummayad forces send by Caliph Sulayman ibn Abd al-Malik and serving under Maslama . They had taken advantage of the civil discord in the Roman Empire to bring a force of 80,000 men and a massive fleet to the Bosphorus .
      Careful preparations and the stubborn resistance put up by Leo wore out the invaders. An important factor in the victory of the Romans was their use of Greek fire . The Arab forces also fell victim to Bulgarian reinforcements arriving to aid the Romans. Leo was allied with the Bulgarians but the chronicler Theophanes the Confessor was uncertain if they were still serving under Tervel or his eventual successor Kormesiy of Bulgaria . Unable to continue the siege in the face of the Bulgarian onslaught and lack of successes, the Arabs were forced to abandon their ambitions on Constantinople in August, 718. Sulayman himself had died the previous year and his successor Umar II would not attempt another siege. The siege had lasted 12 months.

      Having thus preserved the Empire from extinction, Leo proceeded to consolidate its administration, which in the previous years of anarchy had become completely disorganized. In 718 he suppressed a rebellion on Sicily , and in 719 one on behalf of the deposed Emperor Anastasios II. Leo secured the Empire's frontiers by inviting Slavic settlers into the depopulated districts and by restoring the army to efficiency; when the Ummayad Caliphate renewed their invasions in 726 and 739 as part of the campaigns of Hisham ibn Abd al-Malik , the Arab forces were decisively beaten, especially at Akroinon in 740. Leo's military effort was supplemented by his alliances with the Khazars and the Georgians .
      Leo undertook a set of civil reforms including the abolition of the system of prepaying taxes which had weighed heavily upon the wealthier proprietors, the elevation of the serfs into a class of free tenants and the remodelling of family and of maritime law. These measures, which were embodied in a new code (the Ecloga) published in 740, met with some opposition on the part of the nobles and higher clergy. The emperor also undertook some reorganization of the theme structure by creating new themes in the Aeagean .

      But Leo's most striking legislative reforms dealt with religious matters, especially iconoclasm . After an apparently successful attempt to enforce the baptism of all Jews and Montanists in the empire (722), he issued a series of edicts against the worship of images (726-729). This prohibition of a custom which had undoubtedly given rise to grave abuses seems to have been inspired by a genuine desire to improve public morality, and received the support of the official aristocracy and a section of the clergy. But a majority of the theologians and all the monks opposed these measures with uncompromising hostility, and in the western parts of the empire the people refused to obey the edict.
      A revolt which broke out in Greece, mainly on religious grounds, was crushed by the imperial fleet in 727. In 730, Patriarch Germanos I of Constantinople resigned rather than subscribe to an iconoclast decree. Leo had him replaced by Anastasios who willingly sided with the emperor on the question of icons. Thus Leo suppressed the overt opposition of the capital.
      In the Italian Peninsula , the defiant attitude of Popes Gregory II and Gregory III on behalf of image-veneration led to a fierce quarrel with the emperor. The former summoned councils in Rome to anathematize and excommunicate the iconoclasts (730, 732); Leo retaliated by transferring Southern Italy and Greece from the papal diocese to that of the Patriarch of Constantinople . The struggle was accompanied by an armed outbreak in the exarchate of Ravenna in 727, which Leo finally endeavoured to subdue by means of a large fleet. But the destruction of the armament by a storm decided the issue against him; his South Italian subjects successfully defied his religious edicts, and the province of Ravenna became effectively detached from the empire.

      717 AD
      Byzantine Emperor Leo III came to power (717-741 AD) through the Byzantine military deposing Theodosius III (before this Leo had been a general and was an accomplished strategist). After a short time, the Emperor signed and renewed the Bulgar-Byzantine Peace Accord of 716 AD out of the need of more military aid. During this year, the Arabs being ruled by Caliph Omar II (715-720 AD), were led through Byzantine lands in the east (Asia Minor) to take part in a siege against Constantinople. At the head of this army was the Caliph's brother, General Maslama


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