areas beyond effective imperial control on the fringes of the Empire. Constantine's son, Leo IV (775–80), was less rigorous, and for a time tried to mediate between the factions. When he died, his wife Irene took power as regent for her son, Constantine VI (780–97). Though icon veneration does not seem to have been a major priority for the regency government, Irene called an ecumenical council a year after Leo's death, which restored image veneration. This may have been an effort to secure closer and more cordial relations between Constantinople and Rome. Irene initiated a new ecumenical council, ultimately called the Second Council of Nicaea, which first met in Constantinople in 786 but was disrupted by military units faithful to the iconoclast legacy. The council convened again at Nicaea in 787 and reversed the decrees of the previous iconoclast council held at Constantinople and Hieria, and appropriated its title as Seventh Ecumenical Council. Thus there were two councils called the "Seventh Ecumenical Council," the first supporting iconoclasm, the second supporting icon veneration. Unlike the iconoclast council, the iconophile council included papal representatives, and its decrees were approved by the papacy. The Orthodox Church considers it to be the last genuine ecumenical council. Icon veneration lasted through the reign of Empress Irene's successor, Nikephoros I (reigned 802–811), and the two brief reigns after his. Decree of the Second council of Nicaea On October 13, 787 the Second Council of Nicaea decreed that 'venerable and holy images are to be dedicated in the holy churches of God, namely the image of our Lord and God and Saviour Jesus Christ, of our immaculate Lady the Holy Theotokos, and of the angels and all the saints. They are to be accorded the veneration of honor, not indeed the true worship paid to the divine nature alone, but in the same way, as this is accorded to the life-giving cross, the holy gospels, and other sacred offerings' (trans. Price, The Acts of the Second Council of Nicaea [Liverpool 2018], 564-5, abbreviated). The second iconoclast period: 814–843 Emperor Leo V the Armenian instituted a second period of Iconoclasm in 815, again possibly motivated by military failures seen as indicators of divine displeasure, and a desire to replicate the military success of Constantine V. The Byzantines had suffered a series of humiliating defeats at the hands of the Bulgarian Khan Krum, in the course of which emperor