events
Eastern Emperor Leo V is murdered in a church of the Great Palace of Constantinople by followers of Michael II.

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Leo V the Armenian
Byzantine emperor (813 to 820)
Leo V the Armenian was the Byzantine emperor from 813 to 820. He is chiefly remembered for ending the decade-long war with the Bulgars, as well as initiating the second period of Byzantine iconoclasm.Source: Wikipedia (CC BY-SA)
Church of the Virgin of the Pharos
Church in Istanbul, Turkey
The Church of the Virgin of the Pharos was a Byzantine chapel built in the southern part of the Great Palace of Constantinople, and named after the tower of the lighthouse (pharos) that stood next to it. It housed one of the most important collections of Christian relics in the…Source: Wikipedia (CC BY-SA)
December 25
Day of the year
December 25 is the 359th day of the year in the Gregorian calendar; six days remain until the end of the year.Source: Wikipedia (CC BY-SA)
Great Palace of Constantinople
Byzantine imperial palace complex
The Great Palace of Constantinople, also known as the Sacred Palace, was the large imperial Byzantine palace complex located in the south-eastern end of the peninsula today making up the Fatih district of Istanbul, in modern Turkey. It served as the main imperial residence of…Source: Wikipedia (CC BY-SA)
Constantinople
Capital of the Eastern Roman and Ottoman empires
Constantinople was a historical city located on the Bosporus that served as the capital of the Roman, Byzantine, Latin and Ottoman empires between its consecration in 330 and 1930, when it was renamed Istanbul. Initially as New Rome, Constantinople was founded in 324 during the…Source: Wikipedia (CC BY-SA)
Michael II
Byzantine emperor from 820 to 829
Michael II, called the Amorian and the Stammerer, reigned as Byzantine emperor from 25 December 820 to his death on 2 October 829, the first ruler of the Amorian dynasty.Source: Wikipedia (CC BY-SA)