Here at last is a fully annotated critical edition of the Châteauroux text of the Chanson de Roland. Even in the Corpus edition, C was represented by a simple transcript. The Roland Corpus edition of 2005 took Venice 7 as the base text and V7 laisses 92A and 108A were relegated to Appendix A. This obscured crucial evidence demonstrating the greater authority of C as representing the shared model and the role of V7 as modifier of that model. Close comparison of C with V7 and of both texts with the other versions disproves the Segre thesis of the anteriority of V7. In this edition, the aim is always to provide an authentic text with minimal emendation, so as to show the salient characteristics of C, but to discuss its readings in detailed footnotes. All arguments are solidly based on textual analysis throughout and particularly in C’s repetitions and associated assonanced passages. In addition, the linguistic characteristics are studied and the historical background to C pre-1328 and its possible route from Venice to Paris between 1746 and 1792 investigated.