Within the framework of legal literature and book production in the Middle Ages, the works of Baldus de Ubaldis (1327–1400), the most famous jurist of his time, constitute a major theme in the research of the Max Planck Institute for European Legal History. His commentaria
spread all over Europe in a very large number of manuscripts and early printed books, so that Baldus’ works became an important normative source of the ius commune
. A researcher investigates the author’s surviving manuscripts and compiles an intellectual biography.