Ulrike Babusiaux has been a professor of Roman law, private law and comparative law at the University of Zurich (Switzerland) since 2009. Her main research interests lie in the field of Roman civil procedural law, the legal methodology of Roman lawyers and in Roman inheritance law; In addition, she deals with questions of private law comparison, particularly between France and Germany and - more recently - Switzerland.

Mariko Igimi has been a professor of Roman law at Kyushu University, Fukuoka (Japan) since 2002. Her main research interests are in Roman contract and property law, comparing private law between Europe and Japan, and the history of reception She was the secretary general of the 20th General Congress of the International Academy for Comparative Law, which took place in Fukuoka in July 2018.