This textbook of Roman private law was written by one of the most famous modern Italian lawyers, a major specialist in Roman family law. Despite the relatively small volume, the textbook contains a large number of quotes from the main Roman legal sources: Laws of the XII tables, Institutions of Guy, Digest, Institutions and Codex Justinian, works of ancient historians, etc. The textbook was created taking into account the latest Western scientific developments in the field of Roman law, so it allows students to be taught Roman law at the current level of knowledge in this discipline. Thanks to the significant scientific apparatus of references, the textbook is also of interest to teachers of Roman private law. The textbook is intended for law students, lawyers, historians, as well as for all those who are interested in Roman law.