Chairholder of the European Civilization Chair at the College of Europe in Natolin, where the Three Ukrainian Revolutions (3R) project was carried out. He is also Professor of Polish-Lithuanian History at University College London and Principal Historian of the Polish History Museum in Warsaw. His research and publications concentrate on the Polish-Lithuanian Commonwealth in the Age of Enlightenment. Awards include the Polish Historical Society's Pro historia Polonorum Prize for the book The Polish-Lithuanian Commonwealth 1733-1795: Light and Flame (2020).