The number of writs of pardon for trespasses against the forest laws, which are still preserved amongst the duchy records belonging to the thirteenth and fourteenth centuries, suggest that the offender had to purchase his pardon. The religious men, as they were called, and the clergy often had granted to them the right to hunt in the forests, as well as other privileges. As an example of the latter may be named the grant made in 1271 by Edmund Crouchback to the Prior and monks of St. Mary's of Lancaster, to the effect that they might for ever take from the forests in Lancaster,[76] except in Wyresdale, two cartloads of dead wood for their fuel every day in the year, and have free ingress and egress into the forest with one cart for two horses, or with two carts for four horses, to seek for and carry such wood away. Gradually, as the population increased, and as the personal interest of the Dukes of Lancaster in the forests themselves became less, many of these old forest laws fell gradually into disuse; but as late as 1697 a royal warrant was issued to the foresters and other officers of the forests, parks, and chases of Lancashire, calling upon them to give annually an account of all the King's deer within the same, and also to report how many were slain, by whom, and by whose authority. The regulations as to fishing in the rivers of the county were not so comprehensive as the forest laws; but the value of various fisheries was fully recognised, and they became a source of revenue. In 1359 Adam de Skyllicorne had a six years' lease of the fishing in the Ribble at Penwortham, with the demesne lands, for which he paid six marks a year, and in the succeeding year justices were assigned to inquire into the stoppages of the passages in the same river, by which the Duke's fishery of Penwortham was destroyed and ships impeded on their way to the port of Preston. Fishing in the sea as a trade also met with encouragement, for in A.D. 1382 a precept was issued to the Sheriff to publish the King's mandate, prohibiting any person in the duchy who held lands on the coast from preventing fishermen from setting their nets in the sea and catching fish for their livelihood; and in 13 Richard II. (1389-90) an Act was passed appointing a close time for salmon in the Lune, Wyre, Mersey and Ribble. Notwithstanding that the fishing rights on both sides the Ribble had been leased or sold with the demesne lands, nearly 200 years later the King still claimed all manner of wrecks and fish royal which were cast upon the shore. On this point a suit in the duchy court appeared in 1536, in which the King's bailiff charged one Christopher Bone with having taken away sturgeon and porpoises which had been washed ashore at Warton, in the parish of Kirkham, whereas they of right belonged to his Majesty.[77] It may be noted that at this time the porpoise was considered "a dainty dish to set before the King."