sentences:  A number of chronicles that mention Breton's death also note that he was the author of a legal treatise entitled "le Bretoun", but this cannot be the surviving work called "Britton", at least not in the current form, as that work discusses laws composed 15 years after Breton's death.It is unclear why he was credited with the work, and whether this attribution is just a confusion of Breton with the real author or if he did in fact author the work, which was later revised.The fact that the "Britton" is written in French, not Latin, and that it contains little information about the theory of law, being mostly concerned with the practical application of laws, points rather strongly to an author who was a royal justice, which Breton was.