This chapter, the first study of hospital reform under papal legate Robert de Courson, offers a new picture of the legation in preparation for Lateran IV. Courson’s hospital decree is well-known from his councils of Paris (1213) and Rouen (1214). The chapter begins by exploring the origins of the decree, finding that it did not emerge from Courson’s own moral theology, nor from the Parisian theological circle of which he was a leading member. Documentary evidence reveals an earlier iteration of the same decree and unearths a lost first council under Courson, at Reims (1213). Further investigation reveals that the legation was not launched at Paris, as has always been assumed, but with a preaching tour of Flanders and Brabant in June 1213, followed by the council at Reims. The new geography offers a new source for the hospital reform, which is explored through the spread of hospital rules, westward out of Brabant, in the late twelfth and early thirteenth century. It argues, finally, that the reform was closely tied to the beguine movement and, especially, to Jacques de Vitry. After Courson’s council at Rouen (1214), it was not adopted at any other council, including Lateran IV.