The Exeter Ordinale is a huge ordinal issued by John de Grandisson, bishop of Exeter [1327-69], in 1337; it is edited on the basis of manuscripts that belonged to, and were annotated by, the bishop himself. The compilationmarked an important point in medieval study of the liturgy, and the Legenda [liturgical readings for saints' days] which it contains are regarded as one of the most important sources for the study of English medieval hagiography, particularly for saints of English origin.