In St-Calais' time as bishop, a long-running dispute began between the monks of the cathedral chapter and successive bishops. This arose because St-Calais did not make a formal division of the diocesan revenues between the bishop's household and the monks of the chapter. Nor had he allowed free elections of the prior. He may have promised these things to the monks before his death, but nothing was in writing. Thus, when a non-monk was selected to replace St-Calais, the monks began a long struggle to secure what they felt had been promised to them, including the forging of charters ascribed to St-Calais that supported their case. These forged charters date from the second half of the 12th century.