There was a rivalry between the lords of the manor and borough. The lord of the manor complained in 1328 that the burgesses were holding private markets, from which he gained no revenue. The rivalry continued in the 16th century, with Bishop Stanley unsuccessfully challenging the right of the burgesses to hold markets, believing it should be the right of the lord of the manor. In 1583 the corporation of the borough attempted to usurp the lord of the manor by laying claim to the lordship. They did so because they felt they were fulfilling the duties of the lord: to improve waste and common land and allowing construction on this land, running courts, and mining coal. A compromise was reached, dividing some power between the two parties.