Sextus

Sextus, a term, in the ancient canon law, to signify a collection of decretals made by pope Boniface VIII; thus called from the title, Liber Sextus, and being an addition to the five volumes of decretals collected by Gregory IX. The persons reputed to have been commissioned to draw it up were William de Mandegotte, archbishop of Ambrun; Berenger, bishop of Beziers; and Richard, bishop of Sienna.