This volume, Julia Barrow's second for the English Episcopal Acta series, covers the episcopates of three thirteenth-century bishops of Hereford: Ralph of Maidstone (1234–9), Peter of Aigueblanche (1240–69) and John le Breton (1269–75). The substantial introduction contains narrative-based biographical studies of each bishop, that on Aigueblanche being of particular value, given that this controversial figure has been the subject of rather less recent scholarship than might be expected of one so politically significant. There is also useful analysis of the household of each bishop and of the diplomatic of the acta, the latter being supported by four photographic plates showing several of Aigueblanche's acta, along with his seal. The 163 acta reproduced or described here (twenty-two have been lost, and are known only from other sources) provide a valuable insight into the day-to-day running of the diocese, although, due to Aigueblanche's frequent absences from his diocese, his pontificate produced fewer documents (ninety-three) than might have been anticipated, given the proportionally greater output of both Maidstone (thirty-two) and Breton (thirty-eight). Many of Aigueblanche's acta relate to his political career and his foreign diplomatic activities, and there is consequently much here to interest non-ecclesiastical historians of Henry iii's reign, such as material on the inquiry into the king's earlier betrothal to Joanna, queen of Castile, and on troubles on the Anglo-Welsh border. Two versions of Aigueblanche's will are also included. The volume contains a comprehensive bibliography of manuscript and printed sources, along with six appendices (including itineraries of each bishop, and additions to the previous Hereford volume in this series) and detailed indices which greatly enhance its ease of use. Bringing the Hereford EEA volumes to a close (episcopal registers for this diocese survive from 1275), this is an important addition to an invaluable series.