Aquinas's Contra errores graecorum's target: Nicholas of Crotone's Libellus

Thomas Prügl from the Universität Wien (link) write to us with this question:

Let me use the expertise of Thomistica to ask a question: Some months ago, I read a note about a study that included an English translation of the Liber de fide trinitatis, the famous "Libellus" that Pope Urban asked Saint Thomas to examine and that became the occasion for Aquinas' Contra errores graecorum. Father Dondaine edited the Libellus in vol. 40 of the Leonine Edition, along with Contra errores graecorum. Unfortunately I did not wirte down the author and the title, but does anybody know this study or translation?

Please feel free to offer suggestions in the Comments section below, or write to Dr Prügl here.

PS: I checked Fr. Joseph Kenny's library of texts on this but came up short. Any ideas?

Thomistica is 10 years old

Just a short note to remind our friends that today marks the ten-year anniversary of's first post! Thanks to all for their contributions and support. Ad multos annos, nos omnes!

Fr. Bonino new President of PAST

Today Pope Francis has named Dominican Father Serge-Thomas Bonino, the secretary of the International Theological Commission since 2011 and dean of the Philosophy Faculty at the Angelicum since September 2014, as the new president of the Pontifical Academy of St. Thomas Aquinas.


Jörgen Vijgen

DR. JÖRGEN VIJGEN holds academic appointments in Medieval and Thomistic Philosophy at several institutions in the Netherlands. His dissertation, “The status of Eucharistic accidents ‘sine subiecto’: An Historical Trajectory up to Thomas Aquinas and selected reactions,” was written under the direction of Fr. Walter Senner, O.P. at the Pontifical University of St. Thomas Aquinas (Angelicum) in Rome, Italy and published in 2013 by Akademie Verlag (now De Gruyter) in Berlin, Germany.