Monastic granges were outlying landholdings held by monasteries[1] independent of the manorial system.
[2] Granges could be of six known types: agrarian; sheep runs; cattle ranges and holdings; horse studs; fisheries; industrial complexes.
[2] Granges were landed estates used for food production, centred on a farm and out-buildings and possibly a mill or a tithe barn.
The word grange comes through French graunge from Latin granica meaning a granary.
While under monastic control, granges might be run by a steward and worked by local farm labourers or perhaps lay brothers.