Magdalena Bieniak is Assistant Professor of Philosophy at the University of Warsaw. She has published on a number of early-scholastic authors, such as Stephen Langton, Hugh of St-Cher, and Gilbert of Poitiers, as well as on Socinians. ; Marcin Trepczynski is Assistant Professor at the Faculty of Philosophy, University of Warsaw. He has published on scholastic authors, especially on Robert Grosseteste, Albert the Great and Thomas Aquinas, mostly focusing on logical and methodological aspects of theological discourse. He has been working on Stephen Langton's Quaestiones since 2012. ; Wojciech Wciorka is Assistant Professor at the University of Warsaw. His research focuses on twelfth-century logic, its philosophical aspects, and its interface with theology.