By the 14th century Buckfast was one of the wealthiest abbeys in the south-west of England. It had come to own "extensive sheep runs on Dartmoor, seventeen manors in central and south Devon, town houses in Exeter, fisheries on the Dart and the Avon, and a country house for the abbot at Kingsbridge". The Black Death killed two abbots and many monks; by the mid 1300s, there were few left to maintain the buildings, some of which collapsed. By the mid 1400s however, the abbey again flourished.