 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.