Title: Die grossen vier Konzilien
Subjects: Councils and synods, Ecumenical, Ecumenical Councils and synods, Councils and synods, History of doctrines, Council of Nicaea (1st : 325), Council of Constantinople (1st : 381), Council of Ephesus (431), Council of Chalcedon (451), Council of Nicaea (1st : 325 : Nicaea, Turkey)
Time periods: Early church, ca. 30-600