Isabella Lazzarini (Mantova, 1964), studied at the Scuola Normale Superiore, Pisa, and qualified as Professor of Medieval History in 2013; she teaches at the University of Molise. Her research interests focus on the political, social, and cultural history of late medieval Italy, with an emphasis on Renaissance diplomacy and the growth of different political languages in documentary sources. She has been a Leverhulme Trust visiting professor (Jan.-June 2011) and a Marie Curie COFUND senior research fellow at the University of Durham (Jan.-March 2012); a visiting fellow at All Souls College, Oxford (Sept.-Dec. 2012) and a professeur invité at the Ecole Nationale des Chartes, Paris (Feb. 2014) and at the Sorbonne (Chaire Dupront, Feb. 2020).