THE Parliament Rolls of Medieval England (PROME) provides for the first time a complete edition of the principal record of the medieval assemblies, from the first surviving roll in 1290 to the last parliament of Henry VII in 1504. PROME supersedes the six-volume Rotuli Parliamentorum, published in 1767–77 under the general editorship of the Reverend John Strachey. The new edition incorporates material edited subsequently, not least by Maitland and by Richardson and Sayles. Other sections are transcribed for the first time: for instance, the rediscovered twelfth and final membrane of the roll for the parliament of October 1318.