Prof. Margaret Archer FAcSS MAE (1943 – 2023) was Emeritus Professor of Sociology at the University of Warwick (Coventry, England, UK). She founded the Centre for Social Ontology in 2011 at Ecole Polytechnique Fédérale de Lausanne (Switzerland). She led the Centre as its Director until 2017 and then as its General Editor. She was elected as the first woman President of the International Sociological Association (1986 – 1990) and was appointed by Pope Francis as President of the Pontifical Academy of Social Sciences (2014 – 2019). She was a founder member of both the Pontifical Academy of Social Sciences and the Academy of Learned Societies in the Social Sciences. She also was a member and trustee of the Centre for Critical Realism from its inception.