Until the present, the authentic commentary on Genesis by Remigius of Auxerre, the important late Carolingian school-master, has remained unknown. The commentary on Genesis first published in 1723 as the work of Remigius and which also appears in the Patrologia Latina under his name is actually the work of his teacher, Haimo of Auxerre. Bernard Pez, librarian of the Abbey of Melk and editor of the Pseudo-Remigian commentary has based his edition on only two manuscripts (out of 20) which by chance attributed his commentary to Remigius. What Pez did not know was that the manuscripts he used for his edition were part of a tertiary and late family of witnesses, one of whose primary attributes was the misattribution of Haimo's text to Remigius. Now, for the first time, thanks to the Corpus Christianorum, the authentic commentary of Remigius of Auxerre on the book of Genesis appears in print. This edition is based on the 10 extant manuscripts (as well as a collection of excerpts). In addition, the 20 extant manuscripts of Haimo's commentary on Genesis (which the editor is also preparing as a critical edition for Corpus Christianorum) are also thoroughly examined in order to resolve the disputed authorship of the two commentaries by these important school-masters. The new edition contains a thorough analysis of the sources of Remigius' work, setting it in the conext of Carolingian exegesis on Genesis by documenting the relationship between Remigius' commentary and the work of Alcuin, Claudius of Turin, Hrabanus Maurus, Angelomus of Luxeuil, Haimo of Auxerre and Adrevald of Fleury. This source analysis reveals that Remigius was attempting to compose a thoroughly literal commentary on Genesis, extending the exegetical agenda of Augustine's De Genesi ad litteram to the entire book of Genesis. It must be considered of great interest that the editor has discovered a number of passages that are ultimately derived from Jewish exegetical traditions. Languages: Latin.