This book offers a collection of contributions on medieval, early modern, and contemporary perspectives on social ontology.Since the 1990s, social ontology has emerged as a vibrant research area in contemporary analytical philosophy. Questions concerning the nature and properties of social groups, institutions, facts, and objects like money and marriage, have been thoroughly discussed. However, the historical perspective has been largely neglected. One of the central aims of this volume is to show that relevant views on social ontology can be found in medieval and early modern philosophy (ca....