Magdalena Bieniak is Associate Professor of Philosophy at the Faculty of Philosophy, University of Warsaw. She read for the PhD in Philosophy at the University of Padua and at the Université de Sorbonne - Paris IV (co-tutelle) in 2008 and obtained habilitation in Philosophy in 2019. She has worked on a number of early-scholastic authors, such as Stephen Langton, Hugh of St-Cher, and Gilbert of Poitiers, as well as on Socinians. Her major publications include The Soul-Body Problem at Paris ca. 1200-1250 (Leuven, 2010), Stephen Langton, Quaestiones theologiae, vol. I (Oxford 2014), co-edited with R. Quinto, and vols. III.1-2 (Oxford 2021-22) co-edited with M. Trepczyński and W. Wciórka, ""Individuals as Wholes: Gilbert of Poitiers's Theory of Individuality"" in F. Amerini et al., Mereology in Medieval Logic and Metaphysics (Pisa 2019). Andrea Nannini received his PhD in 2014 and is currently a researcher at the Istituto di Storia della Teologia di Lugano. His research focuses on late medieval metaphysics and theology. He has critically edited John Ripa's Lectura super primum Sententiarum, distinctio secunda (Quaracchi, 2020) and distinctio prima (Quaracchi, 2023). He has authored several studies on Ripa's thought, John Duns Scotus's metaphysical univocity, the theory of divine ideas, and the freedom of the will. He is currently working on so-far unedited authors, such as Pierre Ceffons and Anfredo Gonteri.