Marijke Kooijman works as a doctoral student within the project ‘Lobbying in Late Antiquity’ of Prof. Dr. Lieve Van Hoof (Ghent University). Based on her formation as classicist, jurist and historian, she studies the letter collections of the Council of Chalcedon (AD 451) from a socio-legal as well as literary perspective. Her project entitled 'Letters, Letter Collections and the Creation of Textual Authority during the Chalcedonian Controversies' investigates the impact of epistulary interaction on decision making processes and its reception history in Late Antiquity.