Katja Ziegler is the Sir Robert Jennings Professor of International Law at the University of Leicester and Co-Director of the Centre for European Law and Internationalisation (CELI). She is a qualified Rechtsanwältin and member of the Düsseldorf Bar, Germany. Her research spans international, European and comparative law, focusing on the interaction of legal orders; the autonomy of the EU legal order; Brexit and EU-UK relations; human rights; the balancing of economic/trade rules and non-economic interests; and comparative and EU foreign relations law. She is a member of the editorial board of the International and Comparative Law Quarterly. Previously, she researched and taught for a decade at the University of Oxford where she also was a Deputy Director of the Institute of European and Comparative Law and Fellow of St Hilda’s College. She practiced law in the Brussels office of the international law firm Hengeler Mueller before returning to academia. In 2021-22 she has been seconded to the UK Foreign, Commonwealth and Development Office under a Knowledge Exchange Fellowship awarded by the Arts and Humanities Research Council.
Katja Ziegler
Sir Robert Jennings Professor of International Law and Co-Director of the Centre for European Law and Internationalisation (CELI), University of Leicester
Specialist in
Accountability in foreign policy, Human rights and trade agreements, EU-UK Trade and Cooperation Agreement, Brexit, EU law (especially interactions with international law and autonomy of the EU legal order), Parliamentary scrutiny of treaties