This argument revolved around claims by Alexandrians over alleged theological extremism by Antiochians .
Argument 's battleground was the Roman capital , Constantinople , originating argument 's its bishop 's , Nestorius 's , teaching on the nature of Christ .
This argument revolved around claims by Alexandrians over alleged theological extremism by Antiochians , and its battleground was the Roman capital , Constantinople , originating from its bishop 's , Nestorius 's , teaching on the nature of Christ .