Matthias Klatt lecturing at the Suprema Corte de Justicia de la Nación, Mexico City
Suprema Corte de Justicia de la Nación · Mexico City
2026 1 talk
11.06.2026 Prague Czech Republic
Authorities‘ Concordant Order
Prague Constitutional Seminar Series, Law Faculty, Charles University
2025 5 talks
05.08.2025 Sao Paulo Brazil
5½ Myths of Legal Non-Positivism
University of Sao Paulo
04.03.2025 Edinburgh United Kingdom
Hobbes in the City – Hercules in the Courts
University of Edinburgh
29.07.2025 Brasilia Brazil
Six Problems with Constitutionally Conforming Interpretation
University of Brasilia
06.08.2025 Sao Paulo Brazil
Six Problems with Constitutionally Conforming Interpretation
University of Sao Paulo
03.04.2025 Catanzaro Italy
Hobbes in the City – Hercules in the Courts
Università "Magna Græcia"di Catanzaro
2024 9 talks
26.06.2024 Genoa Italy
Hobbes in the City. A Reply to Tsakyrakis‘ Second Balancing Critique
Tarello Institute for Legal Philosophy, Università degli studi di Genova
13.03.2024 Rome Italy
The Limits of Rights: Proportionality and Balancing in Freedom of Speech Cases
Università degli studi Roma Tre
14.03.2024 Rome Italy
Constitutionally Conforming Interpretation
Università degli studi Roma Tre
11.04.2024 Rome Italy
The Use of Foreign Precedent
Università degli studi Roma Tre
26.04.2024 Rio de Janeiro Brazil
The Constitutional Structure of Proportionality
State Court Rio de Janeiro
26.06.2024 Genoa Italy
The Legitimacy of Constitutionally Conforming Interpretation
Tarello Institute for Legal Philosophy, Università degli studi di Genova
25.06.2024 Genoa Italy
The Use of Foreign Precedent
Tarello Institute for Legal Philosophy, Università degli studi di Genova
29.04.2024 Rio de Janeiro Brazil
The Constitutional Structure of Proportionality
Getulio Vargas Law School FGV
23.04.2024 São Paulo Brazil
The Constitutional Structure of Proportionality
Faculty of Law, Universidade de São Paulo
2023 5 talks
04.11.2023 Erlangen Germany
5½ Myths of Legal Non-Positivism
Faculty of Law, Friedrich-Alexander-Universität, Erlangen-Nürnberg
20.04.2023 São Paulo Brazil
Hobbes in the City. A Reply to Tsakyrakis‘ Second Balancing Critique
Faculty of Law, Universidade de São Paulo
25.04.2023 São Paulo Brazil
Writing as an Academic Scholar. Challenges and Best Practices
Faculty of Law, Universidade de São Paulo
26.04.2023 São Paulo Brazil
The Use of Foreign Precedent
Faculty of Law, Universidade de São Paulo
24.04.2023 São Paulo Brazil
Constitutional Theory
Faculty of Law, Universidade de São Paulo
2022 9 talks
19.10.2022 Mexico City Mexico
Problems of Proportionality in the Narrow Sense
Departamento de Derecho, Universidad Iberoamericana
06.05.2022 Brno Czech Republic
Balancing Legal Principles, or How to Infringe Rights without Violating Them
Právnická fakulta Masarykovy univerzity
10.05.2022 Bologna Italy
Balancing Rights: Theoretical Perspectives
Palazzo Malvezzi
09.08.2022 Jacarezinho Brazil
Problems of Proportionality in the Narrow Sense
Programa de Pós-Graduação em Ciência Jurídica da UENP
12.10.2022 Mexico City Mexico
Balancing Rights and Interests
Escuela Libre de Derecho
20.10.2022 Mexico City Mexico
The Use of Foreign Precedent
Centro de Estudios Constitucionales de la Suprema Corte de Justicia de la Nación
18.10.2022 Mexico City Mexico
Hobbes in the City. A Reply to Tsakyrakis‘ Second Balancing Critique
Universidad Nacional Autónoma de Mexico
17.10.2022 Merida Mexico
An Introduction to the Use of Foreign Precedent
Facultad de Derecho de la Universidad Autónoma de Yucatán (UADY). Merida, Yukatan
29.08.2022 Lesbos Greece
Hobbes in the City. A Reply to Tsakyrakis‘ Second Balancing Critique
Hybrid Workshop on "Freedom and Proportionality"
2021 3 talks
30.09.2021 Bayreuth Germany
Abwägung im Erkenntnisvakuum
Internationales Symposium "Diskursive Grund- und Menschenrechtstheorie"
10.09.2021 Brno Czech Republic
Balancing Rights and Interests
Faculty of Law, Masaryk University
20.09.2021 Mexico City Mexico
Balancing Legal Principles, or How to Infringe Rights without Violating Them
Centro de Estudios Constitucionales de la Suprema Corte de Justicia de la Nación (https://www.youtube.com/watch?v=v5RJy_PW6g8)
2019 17 talks
28.11.2019 Mexico City Mexico
Transforming Society by Legal Argumentation
Instituto de Estudios Judiciales, Poder Judicial de la Ciudad de México
18.03.2019 Brasilia Brazil
Proportionality and Constitutional Rights
Lecture at the Superior Court of Justice of Brasil (Science to Public)
19.03.2019 Brasilia Brazil
The Dual Nature of Legal Argumentation
Lecture in the Research Group Law, Rhetoric and Legal Argumentation DR.IA at the Universidade de Brasilia
19.03.2019 Brasilia Brazil
Proportionality and Justification
Lecture at the Universidade de Brasilia
21.03.2019 Porto Alegre Brazil
The Dual Nature of Legal Argumentation
Lecture in the Prosecution Office, Master Programme — Rio Grande do Sul
22.03.2019 Porto Alegre Brazil
Proportionality and Constitutional Rights
Lecture in the Prosecution Office (Science to Public)
22.03.2019 Porto Alegre Brazil
The Dual Nature of Legal Argumentation
Lecture at IMED-UNISINOS
25.03.2019 São Paulo Brazil
Constitution-Conform Interpretation
Lecture in the Series International Dialogues at the Universidade de São Paulo
08.07.2019 Lucerne Switzerland
Creative Applications and Judicial Activism
Lecture in the IVR World Congress 2019—Special Workshop: From Crea tion to Application of Law at the University of Lucerne
27.11.2019 Mexico City Mexico
La legitimidad de la interpretación conforme a la Constitución
Centro de Estudios Constitucionales de la Suprema Corte de Justicia de la Nación
26.11.2019 Merida Mexico
The Relation between Human Rights and Fundamental Rights in Europe
Facultad de Derecho de la Universidad Autónoma de Yucatán (UADY). Merida, Yukatan
25.11.2019 Mexico City Mexico
Integrative Jurisprudence
Universidad Nacional Autónoma de México
25.11.2019 Mexico City Mexico
Proportionality in the Narrow Sense
Centro de Estudios Constitucionales de la Suprema Corte de Justicia de la Nación
12.07.2019 Lucerne Switzerland
Balancing Human Dignity
Lecture in the IVR World Congress 2019—Special Workshop: Human Dig nity and the New Frontiers of Constitutional Law at the University of Lucerne
28.06.2019 Lisbon Portugal
Balancing Rights in a World of Uncertainty
Lecture in the III Lisbon Meeting on Legal Theory at the Universidade de Lisboa
14.11.2019 Erlangen Germany
Schauer’s Asymmetry Thesis
Lecture in the context of the seminar “Balancing Human Rights” at the Friedrich-Alexander-University Erlangen-Nürnberg
09.07.2019 Lucerne Switzerland
Proportionality in Equality Rights
Lecture in the IVR World Congress 2019—Special Workshop: Dworkin’s Equality in Legal Argumentation at the University of Lucerne (Convenor)
2018 3 talks
29.09.2018 Freiburg Germany
Verfassungskonforme Auslegung und Stufenbau der Rechtsordnung
Lecture at the IVR German Section's Conference 2018
26.01.2018 Girona Spain
Proportionality and Justification
Lecture at the “Càtedra de Cultura Jurídica” at the Universitat de Girona (http://www.youtube.com/watch?v=6gNvu9g-BZM)
02.11.2018 Prague Czech Republic
Proportionality and Justification
Lecture at the conference “Human Rights and the Morality of Proportionality“ at Charles University & Czech Academy of Sciences, Prague
2017 8 talks
02.03.2017 London United Kingdom
Proportionality and Justification
Lecture at the seminar “Constitutionalism and the Right to Justification” at the Queen Mary University of London
09.02.2017 Tallinn Estonia
The Justification of Human Rights and the Concept of Law
Lecture at the conference “Human Rights and The Controversy about the Nature of Law” at the Tallinn University, School of Governance, Law and Society (http://vimeo.com/212538652)
31.01.2017 Genoa Italy
Legal Interpretation and Constitutional Argumentation
Seminar at the Università degli studi di Genova
26.01.2017 Vienna Austria
Probleme der verfassungskonformen Auslegung
Lecture at the “Gesprächskreis Rechtsphilosophie und Rechtstheorie” at the Vienna University of Economics and Business
03.01.2017 Tel Aviv Israel
How to Interpret the Law in Conformity with the Constitution
Lecture at the international workshop “The Constitution in Trial Courts: Law, Hierarchy, and Democracy” at the Faculty of Law of the University of Bar-Ilan
07.07.2017 Copenhagen Denmark
Constitution-Conform Interpretation
Lecture at the ICON Society Conference 2017 at the University of Copenhagen
15.06.2017 Barcelona Spain
Proportionality and Justification
Lecture at the conference “Conference on The Legal Philosophy of Global Constitutionalism” at the Pompeu Fabra University
18.03.2017 Krakow Poland
Constitution-Conform Interpretation
Lecture at the Department of Legal Theory at the Jagiellonian University of Krakow
2016 8 talks
23.05.2016 Zagreb Croatia
Legal Argumentation and the Rule of Law
Pravni fakultet Sveučilišta u Zagrebu
20.05.2016 Graz Austria
Das Recht auf Rechtfertigung
Inaugural lecture at the Faculty of Law at University of Graz
29.04.2016 Barcelona Spain
How to Escape from the Bermuda Triangle of Courts
Universitat Pompeu Fabra, Departament de Dret
29.01.2016 Amsterdam Netherlands
Why Law Matters
Comment to Alon Harel, international Workshop “Exploring Structures of Justification and Proportionality in Contemporary Constitutional Law – Methods against Injustice”
29.01.2016 Amsterdam Netherlands
Justification and Proportionality
International Workshop “Exploring Structures of Justification and Proportionality in Contemporary Constitutional Law Methods against Injustice"
16.11.2016 Graz Austria
Das Bermudadreieck der europäischen Grundrechtsgerichte
Grazer Juristische Gesellschaft
18.06.2016 Berlin Germany
How to Escape from the Bermuda Triangle of Courts
Panel “The Normative Foundations of Deference in European Constitutionalism“ at the annual conference of the International Society of Constitutional Law
02.06.2016 Salzburg Austria
Menschenrechte im Bermudadreieck der europäischen Grundrechtsgerichtshöfe
Colloquium “Herausforderungen für die Menschenrechte im 21. Jahrhundert” at the University of Salzburg
2015 8 talks
18.12.2015 Catanzaro Italy
Law’s Ideal Dimension
International Conference “La dimensione ideale del diritto” at the Università degli studi Magna Graecia di Catanzaro
20.10.2015 Belgrade Serbia
How to Escape from the Bermuda Triangle of Courts
Inaugural Speech, Master Programme in European Integration at the Juristische Fakultät, Universität Belgrad
19.10.2015 Belgrade Serbia
Semantic Normativity in Legal Argumentation
International Conference “Legal Normativity and Language” at the Faculty of Law at the University of Belgrad
23.09.2015 Juiz de Fora Brazil
Legal Argumentation and the Rule of Law
International Conference “Law and Innovation”, Faculty of Law at the Universidade Federal de Juiz de For a
18.09.2015 Brasilia Brazil
Legal Argumentation and the Rule of Law
Faculty of Law, Universidade de Brasília
16.09.2015 São Paulo Brazil
Legal Argumentation and the Rule of Law
Faculty of Law, Universidade de São Paulo
26.06.2015 Rotterdam Netherlands
Legal Argumentation and the Rule of Law
Keynote Speaker, International Conference on Legal Argumentation and the Rule of Law at the Erasmus School of Law, Rotterdam
13.03.2015 Frankfurt Germany
Defeasibility in the Law
Comment on Michel de Araujo Kurth, Workshop “Defeasibility in the Law” of the cluster of excellence „Die Herausbildung normativer Ordnungen“ at the Goethe University Frankfurt on the Main
2014 5 talks
27.03.2014 Chapecó Brazil
Positive Rights – Who Decides? Judicial Review in Balance
Plenary lecture, International conference “Dignidade e Proporcionalidade na Teoria de Robert Alexy”, Faculty of Law at the Universidade do Oeste de Santa Catarina, Chapeco
24.03.2014 Juiz de Fora Brazil
Positive Rights – Who Decides? Judicial Review in Balance
Universidade Federal de Juiz de Fora, Faculdade de Direito
25.06.2014 Florence Italy
Balancing Competences
Panel “Balancing in International Constitutional Law” at the annual conference of the International Society of Constitutional Law – Icon-S
01.04.2014 Brasilia Brazil
The Proportionality Test and Prisoner’s Right to Vote
Lecture at the Faculty of Law at the University Brasilia
31.03.2014 Brasilia Brazil
Positive Rights – Who Decides? Judicial Review in Balance
Lecture at the Faculty of Law at the University Brasilia
2013 2 talks
14.08.2013 Hamburg Germany
Der Schutz des Eigentums in Europa
Habilitation lecture, Faculty of Law at the University Hamburg
04.06.2013 Vienna Austria
Impulse für gute Lehre
Ceremonial address for the first UNIVIE Teaching Award 2013, University of Vienna
2012 2 talks
14.03.2012 Essen Germany
Basiskompetenz Grundrechte – Verantwortung entwickeln
Meeting of the Teaching Fellows 2012 of the Stifterverband für die deutsche Wissenschaft
25.01.2012 Hamburg Germany
Die Zulässigkeit des finanzwirksamen Plebiszits
Workshop of the Professors for Public Law of Hamburg
2010 1 talk
08.10.2010 Berlin Germany
How to Run Universities
Impulse-lecture at the international conference “Das Modell Humboldt. Die Zukunft der Universitäten in der Welt der Forschung“, Humboldt-University Berlin
2009 2 talks
30.09.2009 Stuttgart Germany
Der Schutz von Menschenrechten in der Europäischen Union
Summer school Human Rights of the Young Academy at the University of Stuttgart
07.04.2009 Hamburg Germany
Teile und Herrsche! Wie Juristen denken
University of Hamburg as part of job orientation for students
2008 1 talk
11.09.2008 Oxford United Kingdom
Robert Alexy’s Philosophy of Law as System
International conference “Rights, Law, and Morality” at New College, University of Oxford
2007 1 talk
25.10.2007 Bielefeld Germany
Aleksander Peczenik on the Rationality of Legal Argumentation
Conference at the Center for Interdisciplinary Science (ZiF), Bielefeld
2006 2 talks
26.04.2006 Oxford United Kingdom
Taking Rights Less Seriously. A Structural Analysis of Judicial Discretion
Jurisprudence Discussion Group (JDG) at the University of Oxford
25.01.2006 Warsaw Poland
Contemporary Legal Philosophy in Germany
Lecture at the faculty of law of the University Warsaw
2005 1 talk
25.05.2005 Granada Spain
Taking Rights Less Seriously. A Structural Analysis of Judicial Discretion
Lecture at the 22nd World Congress of the International Association for legal and social philosophy (IVR)
2003 1 talk
15.08.2003 Lund Sweden
Semantic Normativity and the Objectivity of Legal Argumentation
Plenary lecture as Young Scholar Prize winner at the 21st World Congress of the international Association for legal and social philosophy (IVR)