As an addendum, if one is going to continue insisting Roman Emperors shaped Christianity:
The Ecthesis of Emperor Heraclius (issued 638) was an imperial compromise in an attempt to end all Christological dispute. The patriarchs of the Eastern Empire agreed, but Pope Severinus condemned the Ecthesis outright, and so was forbidden his seat until 640. His successor Pope John IV also rejected the doctrine completely, leading to a major schism between the eastern and western halves of the orthodox church.
Emperor Constans II, fearing the religious divine within the Byzantine Empire, needed to rebuild his forces to stand off the Arab incursions, and so required unanimity. He issued an imperial edict, the Typos in 648. This edict made it illegal to discuss Christology. He declared that the whole controversy was to be forgotten.
In Rome, the Latern Council (649) under Pope Martin I, condemned both the Ecthesis and the Typos. Pope Martin wrote to Constans and told him so.
The situation between the emperor and Rome deteriorated thereafter, as it became clear Rome would not bow to imperial pressure. Nor was the discussion of Christology silenced ...
The Ecthesis of Emperor Heraclius (issued 638) was an imperial compromise in an attempt to end all Christological dispute. The patriarchs of the Eastern Empire agreed, but Pope Severinus condemned the Ecthesis outright, and so was forbidden his seat until 640. His successor Pope John IV also rejected the doctrine completely, leading to a major schism between the eastern and western halves of the orthodox church.
Emperor Constans II, fearing the religious divine within the Byzantine Empire, needed to rebuild his forces to stand off the Arab incursions, and so required unanimity. He issued an imperial edict, the Typos in 648. This edict made it illegal to discuss Christology. He declared that the whole controversy was to be forgotten.
In Rome, the Latern Council (649) under Pope Martin I, condemned both the Ecthesis and the Typos. Pope Martin wrote to Constans and told him so.
The situation between the emperor and Rome deteriorated thereafter, as it became clear Rome would not bow to imperial pressure. Nor was the discussion of Christology silenced ...