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The Lateran Council ends by condemning the Council of Hieria and anathematizing its iconoclastic rulings.

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Lateran Council (769)
Synod held in Rome
The Lateran Council of 769 was a synod held in the Basilica of St. John Lateran to rectify perceived abuses in the papal electoral process which had led to the elevation of the antipopes Constantine II and Philip. It also condemned the rulings of the Council of Hieria. It is…Source: Wikipedia (CC BY-SA)
Council of Hieria
Iconoclastic Christian council held in 754
The Council of Hieria was a Christian council of 754 which viewed itself as ecumenical, but was later rejected by the Second Council of Nicaea (787) and by Roman Catholic and Eastern Orthodox churches, since none of the five major patriarchs participated. However, it is…Source: Wikipedia (CC BY-SA)
Anathema
Term for something or someone vehemently hated or banned
The word anathema has two main meanings. One is to describe that something or someone is being hated or avoided. The other refers to a formal excommunication by a church. These meanings come from the New Testament, where an anathema was a person or thing cursed or condemned by…Source: Wikipedia (CC BY-SA)
Iconoclasm
Destruction of religious images
Iconoclasm is the social belief in the importance of the destruction of icons and other images or monuments, most frequently for religious or political reasons. People who engage in or support iconoclasm are called iconoclasts, a term that has come to be figuratively applied to…Source: Wikipedia (CC BY-SA)
April 15
Day of the year
April 15 is the 105th day of the year in the Gregorian calendar; 260 days remain until the end of the year.Source: Wikipedia (CC BY-SA)