The text with which this study is concerned is not the text of the canons of the council of Westminster of 1175. It is the text printed long ago by Wilkins from the single manuscript source, Cotton Claudius A IV folios 191v–92, where it has the heading Concilium Ricardi Cantuariensis archiepiscopi. Wilkins gave it the heading Canones condlii . . . and assigned it to 1173, an impossible date, since Richard was not then archbishop. This part of Claudius A IV is a decretal collection, put together from various sources not before, and probably not long after, 1185. Our text, copied as one item in the collection, consists of thirty-seven imperative propositions, all quite short and almost all negative; they all condemn something or forbid something: ‘Christians shall not be usurers’, ‘Lepers shall not in future live among the healthy’, and so on. There is little sign of any attempt at arrangement; related topics may appear more or less widely separated.