Edizione di riferimento:

Excerpta Valesiana, recensuit Jacques Moreau, edizionem correctiorem curavit Velizar Velkov, Lipsiae 1968 (Bibliotheca Scriptorum Graecorum et Romanorum Teubneriana).

The first part of the Excerpta reports the title Origo Constantini imperatoris, which is an epitome of a work that must be deemed among the most important sources for this emperor.  It was composed by an author who lived before Christianity became the official religion, as can be inferred from the fact that it makes no mention of Constantine’s favorable measures on behalf of Christians, whereas authors after Eusebius generally identify these pronouncements as their chief reason for praising that emperor.  The parts of the Excerpta concerning Christianity, which at times draw ad verbum from Orosius, should not, therefore, be attributed to the author of the original work, but rather to the author of the epitome (see, e.g. Excerpt. Vales. 8, 20, 29, 33-5).  The epitomator further had at his disposal a work on the vices of the emperors that was written not long after the death of Constantine and that was also utilized by Aurelius Victor, Eutropius, and Zosimus (e.g. Excerpt. Vales. 1 = Eutr. 9.22.1 = Aurel. Vict. Caes. 39.24.25 = Epit. 39.3; Excerpt. Vales. 11 = Epit. 40.19; Excerpt. Vales. 4 = Aurel. Vict. Caes. 40.2 = Epit. 41.2 = Zosim. 2.8.3).  [S. Rota; tr. C. L. Caterine].