University platform for research on Islam

Initiated by
the Federation
of European

Supported by
the International
of Catholic

Christian Troll

After studying philosophy and theology in Tübingen and Bonn (1957-1961), he studied Arabic at the University of St Joseph in Beirut (1961-1963). After entering the Jesuit order and the Jesuit basic training, he studied at the School of Oriental and African Studies of the University of London from 1966 onwards, where he obtained an honours degree in Urdu literature in 1970 and a doctorate in 1975 with a thesis on modern Islam. In 2001 he was appointed to the Philosophical and Theological University of Sankt Georgen in Frankfurt am Main as an honorary professor. He retired in 2007.

Until 2005, Troll was a member of the Pontifical Commission for Religious Relations with Muslims, part of the Pontifical Council for Interreligious Dialogue (PCID), for twelve years. He is considered an eminent scholar of Islam. Pope Benedict XVI appointed him in 2008 as one of the scientists who – at the invitation of 138 Islamic scholars – collaborate in the Catholic-Islamic Forum. In addition, Troll is a member of the German Bishops’ Conference’s sub-commission for interreligious dialogue and an advisor to the Bishops’ Office CIBEDO.

He is co-author with Tobias Specker, SJ, of the book that gave rise to the website in German: “Muslims ask, Christians answer.”

Member of the Research group

Philosophisch-Theologische Hochschule Sankt Georgen - Germany

Catholic Theology in dialogue with Islam (Frankfurt)

Catholic theology in Europe is increasingly confronted with the questions and criticisms of Muslim intellectuals who, in particular, point out the convergences between the two religions. The research project aims to perceive this new context of theology, to analyse it carefully, and to reformulate the potentials of the Christian tradition.

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Resources related toMuslim-Christian Dialogue


Protestantism and Islam

  • Pierre-Olivier Léchot

How did Martin Luther and John Calvin view Islam? How have Protestant theologians contributed to research on Islam? Pierre-Olivier Léchot, professor of modern history at the Protestant Institute of...


Corresponding across Religious Borders: The Letter of al-Qūṭī

  • Diego Sarrió Cucarella

Summary : This article provides an introduction to the Letter of al-Qūṭī, a short anti-Islamic polemic in Arabic purportedly written by an unknown priest active in Toledo in the mid-1...


Lavigerie and Islam, an ambiguous legacy

  • Diego Sarrió Cucarella

In a recent article on the contribution of the White Fathers to the renewal of Catholic attitudes towards Islam, Rémi Caucanas rightly notes that their founder’s legacy “was not without ambiguity”...


Blessed Ramon Llull: the character and his relationship with Islam

  • Diego Sarrió Cucarella

The PISAI is pleased to announce the publication of the book Il beato Raimondo Lullo: il personaggio e il suo rapporto con l’Islam (Roma 2021), edited by Professor Diego Sarrió Cucarella, MAf...


‘Inimitable’ Koran ?

  • Tobias Specker

Interview with Pr. Tobias Specker, professor of Catholic Theology in the light of Islam at Sankt Georgen Graduate school of Philosophy and Theology, Frankfurt, Germany, about his book : Gottes Wort...


God’s Word and Human Language Christian theology of revelation and Islamic positions on the inimitability of the Koran

  • Tobias Specker

God’s Word is at the centre of both the Christian and Islamic faiths. Revelation and language are thus closely related in both religions. Tobias Specker brings Islamic and Christian theology,...


Rethinking the Muslim-Christian living together in Lebanon / Amin Elias

  • Amin Elias

On the eve of the first centenary of the proclamation of the State of Greater Lebanon (September 1, 1920), this intervention proposes to expose and analyse the position of Muslims in Lebanon toward...


The view of Lebanese Islam on the other: what specificity?

Salim Daccache, Rector of Saint Joseph University since 2012. Doctor of Letters and Philosophy and in Educational Sciences. Argument: How does Lebanese Islam look at the other, the Christian, it...