Luigi Capogrossi Colognesi served as Professor of Roman Law at the Universities of Macerata and Pisa from 1971, and at the University of Rome 'La Sapienza' from 1981, where he is now Professor Emeritus. He has an international reputation in many areas of research including the history of property law, the history of Roman agrarian institutions and economics, and the history of social sciences in the nineteenth century, with particular reference to Max Weber's thinking on ancient history.