The remains of the bishop's palace at Stow Park, together with those of its associated deer park and fishponds, survive well as a series of substantial earthworks. The palace is well documented and, as a result of detailed historical research and archaeological survey, its remains are quite well understood. Buried structural and artefactual remains will provide valuable information about the construction, layout and use of the palace buildings and about social and economic activity on the site. As a result of partial infilling of the moat, ditches and ponds, archaeological deposits relating to the construction and use of these features will also be preserved; in these areas, waterlogging will additionally preserve organic remains such as wood and leather, and environmental material such as seeds and pollen will preserve unique information about the nature of the landscape in which the palace was set. The old ground surface sealed beneath the banks forming the park pale will retain evidence for early land-use prior to the laying-out of the park, while the earthworks themselves will include buried evidence for structures which are no longer evident, such as a fence which may have surmounted the bank. The association of both the deer park and the fishponds with the palace site will give us an insight into the way in which these features of the medieval landscape interrelated as components of a high-status establishment.
The monument includes the buried and earthwork remains of a medieval palace of the Bishops of Lincoln, together with associated water features and deer park, situated at Stow Park, 1.9km south west of Stow. The remains of the bishop's palace and deer park lie in three separate areas of protection. Although the palace is first referred to in documentary sources of the late 12th century, episcopal ownership of the manor is likely to date back to at least the previous century when the bishop founded the Church of St Mary at Stow. King John visited the manor in 1200, and in 1336 a royal licence was obtained to crenellate the dwelling house. During the 13th and 14th centuries it was one of the principal residences of the Bishops of Lincoln. In the mid-16th century, however, Bishop Holbeach transferred the manor into private hands. By the late 18th century the buildings were in ruins, and following the removal of building materials, a new farmhouse with outbuildings, called Moat Farm, was constructed on the site.
The moated site on which the palace stood, together with its fishponds and other water-control features, lies in a prominent position on gently sloping ground overlooking the Trent valley to the south and west. The moat is constructed on the south side of a west-flowing stream, to which it is connected by a linear channel running eastwards from its north eastern corner. Adjacent to the north is a series of broad depressions, partly embanked, representing ponds constructed along the course of the stream. Although the easternmost pond has been partly infilled, and the dam retaining it lowered by modern ploughing, remains of the pond will survive as buried archaeological deposits. The central depression, immediately to the north of the moated site, is now partly occupied by a modern pond; the dam on its western side, which stands to a height of about 2m, carries a causeway which is believed to represent the principal medieval access to the palace. An area of raised ground adjacent to the western side of the causeway may indicate the position of a gatehouse. The dammed ponds may thus be seen to have formed an ornamental water feature, enhancing the main approach to the medieval palace, as well as being used for keeping fish; documentary sources suggest that they also served as a swannery.
Adjacent to the south east of these water features, and approximately 30m east of the moated site, is a group of much smaller ponds, linked to and aligned with the east-west channel which feeds into the moat. The largest of these ponds measures about 35m by 9m and is 0.5m in depth; a southerly extension at its eastern end, about 14m in length, may have originated as a separate pond. Adjacent to its western end is another pond about 10m square. This group of ponds is believed to represent a series of breeding tanks for raising fish, which would subsequently be transferred into the larger ponds.
The moated site, upon which the principal buildings of the palace were located, lies adjacent to the south of the main water features. The moated island, which is raised about 2m above the surrounding ground level, is subrectangular in plan, measuring about 75m by 85m. Although no standing remains of the medieval palace are now visible above ground, the buried remains of the domestic and service buildings of the palace will survive below it. The island is surrounded by a substantial moat, 3m in depth and now largely dry, which is crossed by the principal causeway on the north side, and by a narrower causeway near the northern end of the east side, which may be later in date. The moat is in turn surrounded by an outer bank; on the north side it separates the moat from the adjacent water features, and on the east it is visible as a substantial earthwork up to 20m wide. On the south side, and on the west where it extends northwards to serve as the westernmost dam among the adjacent water features, the bank has been reduced by modern ploughing and now survives as a low earthwork about 0.5m high.
The medieval deer park associated with the palace formerly occupied an area of about 275ha extending southwards from the moated site. The surviving remains of the park pale are protected in two areas, 1.5km and 1km to the south west and south east of the moated site respectively. The south western part of the park pale survives as a linear bank about 8m in width; along its eastern, inner, side is a broad linear ditch, now partly infilled, which is visible as a dry depression about 1.5m below the narrower inner counterscarp bank which runs in turn along its eastern side. The surviving earthworks thus extend for a length of about 770m, including the south western corner of the deer park. The south eastern part of the park pale also survives as a linear bank about 8m wide and 110m long, although the inner ditch has been replaced by a modern drain and is no longer evident. The earthworks protected in these two areas represent the only surviving parts of a formerly extensive landscape feature. (Scheduling Report)