Dr. phil (Byzantine Studies), University of Vienna 2006. Post-doc researcher at the University of Vienna Institute of Byzantine and Modern Greek Studies. Dr. Ekaterini Mitsiou has worked on projects at the Austrian Academy of Sciences and in National Hellenic Research Foundation (Athens). In the Wittgenstein-project she focuses on elite and non-elite mobility with the help of digital tools (network analysis, GIS), as well as on microstructures and transcultural phaenomena in the Empire of Nicaea (1204-1261)