Abstract

The theology of Pier Damiani († 1072) is still an understudied theme in his scholarship, in particular, for what it concerns his Trinitarian and Christological doctrines. The aim of this study is to reconstruct and discuss especially Damiani’s Christological views as formulated in Letter 81, better known as his De fide catholica. It is argued that Damiani’s approach is mostly exegetical, as he mainly points to and comments on Biblical passages in support of Catholic doctrines. Still, he assumes a peculiar method of investigation, as he devotes the main body of the Letter to the question of the correct understanding (recta intelligentia) of the Catholic interpretation of Christology, and reserves only the final summary to a discussion of Biblical authorities. Eventually, it is argued that despite Damiani’s attempts at clarifying the matter, he acknowledges an inherent difficulty in explaining how it is possible that God became man without truly assuming the person of man, and, if He did so, how this did not give rise to two, however indistinct, persons or hypostases. The concept of ‘co-union’ of human and divine natures, introduced by Damiani, makes the simultaneous unity and distinction of the two natures intuitively clear, but it remains a concept that is not clarified in all its details and implications.