The name of this Oxford Franciscan, of whom very little is known (but see below), is connected with six sermons that have been preserved in several manuscripts in a complicated relationship:

As already mentioned, MS Balliol 149 contains two sermons that are marginally ascribed in the text hand to “Chambron.” The first is Quare rubrum est indumentum tuum? (Isaiah 63:2; S-20) with the rubric “Sermo chambron in die parasch” (f. 84). It is a long, complex sermon on Good Friday and, judging by its relatively wide attestation in our period, evidently enjoyed great popularity. It also has a baffling textual history, for the Balliol manuscript itself contains a second version of it, S-19, which includes all of S-20, though with some important differences, and then adds a further development of the same thema, with a new division. This could of course mean that in S-19 the version of S-20 was expanded, or that perhaps a different sermon on the same thema was erroneously linked to the existing text of S-20. But there are several reasons to believe that, conversely, the shorter form S-20 is a redaction of the longer, more sprawling S-19, the most immediate being that in the Balliol manuscript the text of S-20 has been visibly corrected in light of S-19.