"Un riscontro meraviglioso?": la scuola di Pietro Bonfante e "l'antico diritto giapponese"

This paper aims to investigate a field of research pursued, within the framework of a naturalistic approach in the historial study of law, by Pietro Bonfante and some of his students (mainly Guglielmo Castelli), namely the alleged parallelism between Roman family law and ancient Japanese law.