Richard Price is Professor Emeritus of the History of Christianity, Heythrop College and Honorary Research Fellow, Royal Holloway, University of London. His many previous publications include The Acts of the Council of Chalcedon (Liverpool 2005), The Acts of the Council of Constantinople of 553(Liverpool 2009), The Acts of the Lateran Synod of 649 (Liverpool 2014), and The Acts of the Second Council of Nicaea (Liverpool 2018).Thomas Graumann is Reader in Ancient Church History and Patristic Studies at Cambridge University. His previous publications include Die Kirche der Väter (Tübingen 2002); Theodosius II and the politics of the first Council of Ephesus, in: Theodosius II: Rethinking the Roman Empire in Late Antiquity(Cambridge 2013) 109-129; Documents, Acts and Archival Habits in Early Christian Church Councils: A case study, in: Manuscripts and Archives (Berlin 2018) 273-294.
