Derya Bayır is a Marie Skłodowska-Curie Postdoctoral Fellow at the Saxo Institute, University of Copenhagen, and leads Engaging the League of Nations in Protecting Turkey’s Minor ities (ELoN), combining historical and legal analysis to show how the League’s minority-protection system and the Lausanne Treaty shaped minority rights in interwar Turkey. Derya has built and analysed a new corpus of League petitions and diplomatic files (Geneva, London), with findings forthcoming in The Cambridge Handbook of the League of Nations and International Law. She is the author of Minorities and Nationalism in Turkish Law. She received the LSE Contemporary Turkish Studies prize for her doctoral thesis (Queen Mary, University of London). Derya has litigated before the European Court of Human Rights, including the prominent case Güveç v. Turkey. She also held a Leverhulme Research Fellowship researching secular law and religious diversity in Turkey. Derya’s interests include international human rights law; minority and linguistic rights; the history of international law and the League of Nations; sovereignty and minority adjudication; minority governance regimes in Turkey from empire to nation-state; and comparative autonomy arrangements, judicial power-sharing, and the use of language rights before courts.