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Team Members

  • Dr Christian Marxsen

    Christian Marxsen leads the Max Planck Research Group “Shades of Illegality in International Peace and Security Law”. He is co-editor of the Cambridge University Press book series Max Planck Trialogues on the Law of Peace and war and has taught international law in Heidelberg, Beijing and Santiago de Chile.

  • Dr Erin Pobjie

    Erin Pobjie is a Senior Research Fellow in the Shades project. In her post-doctoral project, she researches the relationship between state behaviour and the international law on the use of force. Prior to joining the research group, she was a research fellow at the Institute for International Peace and Security Law in Cologne, and a visiting scholar at the Lauterpacht Centre for International Law at the University of Cambridge.

  • Florian Kriener

    Florian Kriener graduated from the Law Faculty of the University of Heidelberg in 2019 and is a Research Fellow at MPIL. In his research he focusses on the Principle of Non-Intervention and its interplay with support to international protest movements.

  • Alexander Wentker

    Alexander Wentker is a Research Fellow in the SHADES project at MPIL. His doctoral thesis explores party status to armed conflict in international law and is supported by a doctoral scholarship of the German National Academic Foundation as well as by a Clarendon scholarship. Alexander teaches International Dispute Settlement at Freie Universität Berlin. He completed his First State Examination in law in Berlin (Humboldt-Universität) and holds master’s degrees in law from the universities of Oxford and Paris II. Prior to joining the research group, Alexander clerked at the Supreme Court of Namibia and interned, inter alia, with the UN Office for the Coordination of Humanitarian Affairs in New York.

     

  • Felix Herbert

    Felix Herbert first joined the SHADES project as a student research assistant in 2018. Having graduated from the Law Faculty of Heidelberg in December 2020, he is now a Research Fellow at MPIL. His research focusses on the peremptory (ius cogens) character of the prohibition of the use of force.

  • Paula Anna Jenner

    Paula Anna Jenner has been a Research Fellow at MPIL since completing her First State Examination in law in 2020 in Heidelberg, having already been part of the SHADES project as a student research assistant since 2018. She is a Doctoral Candidate at the Law Faculty of Heidelberg, working, using a comparative approach, on a thesis in European Law with a focus on German, French and Polish perspectives.

  • Leonie Brassat

    Leonie Brassat is a student research assisant within the Max Planck research group Shades of Illegality in International Peace and Security Law. (SHADES).

    She studies law at the University of Heidelberg with an emphasis on International Law and gained deeper knowledge in Public International Law while participating in the 2020 Jessup International Law Moot Court.

  • Lukas Hemmje

    Lukas Hemmje has been a law student at the University of Heidelberg since 2018. He first came into contact with International Law as a member of the University’s team for the 2020 Jessup Moot Court. He has since joined the SHADES project to further pursue his interest in the subject.

  • Charlotte Magnus

    Charlotte Magnus has been a law student at the University of Heidelberg since 2017 and developed a particular interest in Public International Law while studying abroad in France. She participated in the 2021 Jessup International Law Moot Court and recently joined the SHADES project as a student research assistant. 

  • Julius Bayón

    Julius Bayón is a student research assistant in the SHADES project. Since 2017, he has studied law at the University of Heidelberg with a focus on international law. As part of this, he has attended summer schools of the Studienstiftung in Vienna and on Lake Geneva and participated in the 2021 Jessup Moot Court.