Robert Gramsch-Stehfest is an extraordinary Professor of Medieval History at the Historical Institute. His research interests involve quantitative methods in medieval studies, especially in the fields of historical statistics and Social Network Analysis. He is a member of the Editorial Board of the Journal of Historical Network Research (https://jhnr.uni.lu/index.php/jhnr) and of an interdisciplinary working group at University of Jena MEPHisto (Models, Explanations and Processes in the historical sciences, https://www.mephisto.uni-jena.de/), which studies the requirements for a collaborative, open research environment for the humanities in a current project.