But this created a new stir, for many, particularly Pope Felix III, declared that the emperor had no authority to prescribe what was to be believed. Since Zeno had the support of Patriarch Acacius of Constantinople, the dispute resulted in an open breach between the bishops of Rome and Constantinople. Called the Schism of Acacius, this separated the East from the West until 519, well after the death of both principals. At that time, Emperor Justin and Pope Hormisdas reached an agreement that was in fact a return to the decisions of Chalcedon.

