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Eduard Fiedler is an Assistant Professor of Philosophy at the Sts Cyril and Methodius Faculty of Theology, Palacký University in Olomouc. He is also the Principal Investigator of the project “Trinitarian Ontologies: A New Philosophical Investigation into Trinitarian Relationality” (2024–2026). Since 2024 he is a member of the editorial board of the Czech edition of ICR Communio. Since 2023, he serves as a member of the scientific board of the Jan Amos Komenský Museum in Uherský Brod and as a member of the editorial board of the journal Studia comeniana et historica. In 2023 he was honoured by being called a full member of the Geisteswissenschaftlichen Klasse, Sudetendeutsche Akademie der Wissenschaften und Künste (München). In the past, he has participated in the project “Trinitarian Ontology of the Human Person” at Charles University in Prague (2021-2023), and co-organized the international conference on Trinitarian Ontology and Personalism in Prague (2023) as well as the New Trinitarian Ontologies EuARe Panel in Münster (2021).

Eduard Fiedler serves as the Coordinator of all TRIERTIUM research group’s activities. His research focuses on Trinitarian ontology, particularly as exemplified in the works of Augustine, Comenius, and Klaus Hemmerle, with the aim of exploring the enigmatic nature of relations and self-referentiality as a precondition for formulating a new Christian synthesis of wisdom and arts in the 21st century.

Petr Macek studied History and Theology at Charles University, Prague, and graduated here with a degree in European Studies. In 2018, he finished his Ph.D. studies at the Catholic Theological Faculty, Charles University with the doctoral thesis focusing on the life and work of Metoděj Habáň. Currently, he is a faculty member at the Department of Studies in Culture and Religion, University of Hradec Králové. His research revolves around the intersection of modern Czech church history, philosophy, and theology, with a particular focus on topics related to Catholic social thinking and its theological and philosophical foundations. Petr Macek participated in the “Trinitarian Ontology of the Human Person” project at the Catholic Theological Faculty, Charles University, exploring the social and political dimensions of Trinitarian ontology.

Within TRIERTIUM, Petr Macek continues his research into the social dimension of relational ontology in both the historical and genealogical aspects of this subject, particularly within the context of Czech theological thinking. He also engages in systematic treatment of the given subject, examining the contemporary theological critique of liberalism from the perspective of a metaphysically grounded ontology of peace and community, and its potential contribution to the discussion on the crisis of liberal democracy.

Cyril Dunaj studied Philosophy at the Pontifical Salesian University in Rome, the Catholic University of Lyon, and the Sophia University Institute in Loppiano, Italy. In 2021, he completed his Ph.D. studies at the Catholic University of Lyon and the Sophia University Institute in Loppiano, focusing on the relationship between reciprocity and ontology in the work of the French personalist Maurice Nédoncelle. He previously served as an Assistant at the Faculty of Theology of the Catholic University of Lyon, teaching a course on Faith and Reason in Modernity. His research concerns the question of intersubjectivity in French personalism, with a particular emphasis on the thought of Mounier and Nédoncelle. Since 2021, he has been a member of the scientific secretariat of the editorial board of the “Dynamic Dictionary of Trinitarian Ontology”, published in Italy.

Within TRIERTIUM, Cyril Dunaj builds on his previous work on Mounier and Nédoncelle, and develops the question of intersubjectivity and reciprocity in the horizon of Trinitarian ontology, where reciprocity is not a result of relationality but its condition and source. He also explores how Trinitarian relationality can resolve various contradictions in thinking and being when reciprocity becomes the criterion of “new thinking” (Coda).

Dalimil Ševčík studied Aesthetics in Brno at the Masaryk University and Philosophy in Olomouc at the Palacký University, as well as the Piano Interpretation at the Janáček Academy of Performing Arts. His master’s thesis was published as the monograph “The Tragic and Antigone in the Work of Søren Kierkegaard” in 2021. Currently, he is continuing his Ph.D. studies in Aesthetics at Masaryk University, focusing on the tradition of the philosophy of music, interpreting it as “musica”, encompassing not only tones and sounds but also the structures and harmonies of the universe and the human soul, including “analogia Trinitatis”.

Within TRIERTIUM, Dalimil Ševčík explores the Trinitarian character of aesthetic relations implied in music in its broader sense. Subsequently, he seeks to establish a dialogue between the older tradition of Trinitarian metaphysics of music and selected approaches in modern philosophy.