Øystein Ekroll is a medieval archaeologist and senior researcher at the Nidaros Cathedral Restoration Workshop in Trondheim, Norway. Ekroll defended his PhD thesis The Octagonal Shrine Chapel of St Olav at Nidaros Cathedral: Investigation of its Fabric, Architecture and International Context at the Norwegian University of Science and Technology (Trondheim) in 2015. He has published numerous studies on various aspects of medieval history, with an emphasis on medieval church architecture, monastic institutions, and religious culture in Norway.
