In addition to churches within Kilwinning, the abbey had revenues from thirteen other parish churches in Cunninghame, giving sixteen in all. The abbey also held lands at Monkcastle and Monkredding. Monkcastle served as the country residence of the abbots. In the reign of Robert III, Sir William Cunninghame of Kilmaurs gave the lands of Grange in Kilmarnock to the monks. John de Menteth, Lord of Annan and Knapdale gave the monks the right of patronage to the churches of Saint Mary and Saint Bridget on Arran in 1337. The chapel of Saint Bridget also covered the lands at Portencross and West Kilbride, which was established as a separate Parish in 1567.