A facsimile of a ten-leaf fragment of an illuminated sacramentary. The commentary, published in German and in English, includes a close examination of the object itself (physical properties, text, writing, and painting), considers the fragment's place in the oeuvre of the main scribe, and evaluates the artistic comparanda. A new understanding—anticipated in the work of Guy Lanoë—of the probable circumstances of the manuscript's creation is offered: that the sacramentary was made almost certainly at the behest of Roger, bishop of Beauvais from 998 to 1016, for his cathedral church of Saint Peter.