Crusader Kings II Wiki

Nestorianism is a Christological doctrine advanced by Nestorius, Patriarch of Constantinople from 428–431. The doctrine, which is informed by Nestorius' studies under Theodore of Mopsuestia at the School of Antioch, emphasizes the disunion between the human and divine natures of Jesus. Nestorius' teachings brought him into conflict with some other prominent church leaders, most notably Cyril of Alexandria, who criticized especially his rejection of the title Theotokos ("Bringer forth of God") for the Virgin Mary. Nestorius and his teachings were eventually condemned as heretical at the First Council of Ephesus in 431 and the Council of Chalcedon in 451, leading to the Nestorian Schism in which churches supporting Nestorius broke with the rest of the Christian Church. Afterward many of Nestorius' supporters relocated to Sassanid Persia, where they affiliated with the local Christian community, known as the Church of the East. Over the next decades the Church of the East became increasingly Nestorian in doctrine, leading it to be known alternately as the Nestorian Church.


Nestorianism is an early Christian branch which states that Christ has two separate natures - one divine and one human. This is the opposite of the Monophysite position where Christ has but a single nature. The nominal head of the Nestorian Church is the Patriarch of the East. Defining features in-game:

Head - The Patriarch of the East

Holy sites - Alexandria, Jerusalem, Antioch, Baghdad, Roudehen

  • There is always a Patriarch of the East, even if Antioch falls.
  • Multiple Patriarchs - the five Pentarchs and Autocephalous Patriarchs under Kings.
  • Patriarchs can grant divorces.
  • The Patriarch of the East can grant the Invasion Casus Belli.
  • Patriarchs can excommunicate Nestorian characters.

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