Johannes Zachhuber holds a doctorate from the University of Oxford and a Habilitation from Humboldt University, Berlin. After completing his DPhil in 1998, he taught at Humboldt University in Berlin until 2005 when he joined the University of Oxford and was appointed Fellow of Theology at Trinity College, Oxford. In 2014, he was named Professor of Historical and Systematic Theology at the University of Oxford. His research ranges across the history of Christian theology with a special emphasis on late antiquity and the nineteenth century. His most recent monograph is The Rise of Christian Theology and the End of Ancient Metaphysics (2020).
Anna Marmodoro holds the Chair of Metaphysics in the Department of Philosophy at Durham University and she is concomitantly an Associate Member of the Faculty of Philosophy of the University of Oxford. She specializes in two main research areas: on the one hand, metaphysics, and on the other, ancient, late antique, and medieval philosophy. She has also strong research interests in the philosophy of science and the philosophy of religion. Anna has published monographs, edited books, and journal articles in all these areas. Her latest monographs are Forms and Structure in Plato's Metaphysics (2021), and Properties in Ancient Metaphysics (2023).