The priory of Launceston was founded in the 1120s and owned a large collection of properties in the Launceston area. Its cartulary gives information about many aspects of the Priory's existence, including its tenants, quarrels over land and boundaries, and dealings with local laypeople. Particularly interesting are the details about the Priory's relationship to local parishes, where we see disputes over church maintenance, lights, and other day to day aspects of parish life.