^aUniversity of Manchester School of Law, University of Manchester, Williamson Building, Oxford Road, Manchester M13 9PL, UK. E-mail: dora.k@manchester.ac.uk

Abstract

In the 1990s most scholars saw European citizenship as a purely decorative and symbolic institution which added little new to the 'pre-Maastricht' regime of free movement rights. In addition, many felt the need to defend the primacy of national citizenship by highlighting the derivative nature and weak content of European citizenship. Accordingly, its transformative potential remained at the margins of the debate. Despite such assessments, European Union citizenship has matured as an institution, owing to a number of important interventions by the European Court of Justice and legislative initiatives, such as the Citizenship Directive (Dir 2004/38).