Pleas. York, Benedictine abbey of St. Mary. [1270-1271] (1271). . Leaf, being a fragment of pleas, 55 Hen. III, concerning the rights of the abbot and convent of St. Mary, York, in Briddesale, York, and Claxton, chiefly concerned with a case of the Abbot, the Prior of Kirkham and Dyonisia de Monte Cam[...] versus Peter de Malo Lacu [mutilated].