CCCC MS 464 is a fifteenth-century copy of the Life and Miracles of St Thomas Becket by John Grandisson, Bishop of Exeter (d. 1369). On the grounds of its decoration it has been dated to the second quarter of the fifteenth century. It may once have been at Lincoln Cathedral: Ker linked the partially legible inscription "de sneyd" with the Lincoln prebendary Ralph Sneyd who removed books thence.