The comprehensive gazetteer and bibliography of the medieval castles, fortifications and palaces of England, Wales, the Islands.
The listings
Other Info
Print Page 
Next Record 
Previous Record 
Back to list 

Dewy Hill

Also known as, or recorded in historical documents as;
Dewey Hill

In the civil parish of Bolingbroke.
In the historic county of Lincolnshire.
Modern Authority of Lincolnshire.
1974 county of Lincolnshire.
Medieval County of Lincolnshire.

OS Map Grid Reference: TF348655
Latitude 53.16940° Longitude 0.01594°

Dewy Hill has been described as a probable Timber Castle.

There are cropmark/slight earthwork remains.


Although not well documented until the 13th century, it has always been assumed that there had been a castle at Bolingbroke since the 12th century. Excavations on the castle site therefore prompted the thought that the site of the castle had been moved. There is an earthwork, 120 yards long and 80 yards broad, on Dewy Hill. 500 yards north of the present castle. In October 1965 five days were spent on this site trial trenching. Evidence of an earthwork was found, and traces of occupation (bones, sherds, a buckle and hone) of 11th to 12th century date were found, although the earthworks themselves might be of earlier origin. The occupation is of the right date, but the evidence is still a little slender to speak of a castle. (Lincolnshire HER referencing 1965 article in East Midlands Archaeological Bulletin)

Dewy Hill. An earthwork 120 x 80 yards, roughly following the 200 ft contour, was examined by M W Thompson in 1965 and identified as the remains of an 11th-12th century fortified hall, the forerunner of the hexagonal Bolingbroke Castle (TF 36 SW 10). A trench through the E end of the single, sand, bank showed it to be c.5 ft high x 50 ft wide, lacking a dug ditch but with the natural slope scarped down to a depth of 11 ft. At the W end the bank was only 2 ft high, but there was a substantial ditch, excavated to 7ft but not bottomed. Within the bank, occupation material included pottery (Torksey ware, 12th-13th century glazes and hand-made types), animal bone , a buckle and scatter of ridge-tile fragments. No foundations were found. The pottery suggests an early Medieval origin for the earthwork, which is now ploughed flat. (PastScape ref. Thompson 1966)

Ringwork. Survives as roughly rectangular cropmark with slightly large area in southeast corner on top of hill overlooking Bolingbroke castle. Possibly built on site of an early medieval fortification and/or settlement. The site is now ploughed flat.
Possible precursor to Bolingbroke Castle. It is sometimes mentioned in the texts for Bolingbroke. No earthworks are shown on the 1888 OS map suggesting either the site was damaged by ploughing even by this relatively early date (not impossible in highly agriculture Lincolnshire) or that the earthwork were never particularly strong, suggesting the C11 hall was only modestly defended (although a ditch more than 2m deep would make this a castle). There is no evidence for a motte.
Links to archaeological and architectural databases, mapping and other online resources

Data >
PastScape   County HER            
Maps >
Streetmap   NLS maps   Where's the path   Old-Maps      
Data/Maps > 
Magic   V. O. B.   Geology   LiDAR   Open Domesday  
Air Photos > 
Bing Maps   Google Maps   Getmapping   ZoomEarth      
Photos >
CastleFacts   Geograph   Flickr   Panoramio      

Sources of information, references and further reading
Most of the sites or buildings recorded in this web site are NOT open to the public and permission to visit a site must always be sought from the landowner or tenant.
It is an offence to disturb a Scheduled Monument without consent. It is a destruction of everyone's heritage to remove archaeological evidence from ANY site without proper recording and reporting.
Don't use metal detectors on historic sites without authorisation.
The information on this web page may be derived from information compiled by and/or copyright of Historic England, County Historic Environment Records and other individuals and organisations. It may also contain information licensed under the Open Government Licence. All the sources given should be consulted to identify the original copyright holder and permission obtained from them before use of the information on this site for commercial purposes.
The author and compiler of Gatehouse does not receive any income from the site and funds it himself. The information within this site is provided freely for educational purposes only.
The bibliography owes much to various bibliographies produced by John Kenyon for the Council for British Archaeology, the Castle Studies Group and others.
Suggestions for finding online and/or hard copies of bibliographical sources can be seen at this link.
Minor archaeological investigations, such as watching brief reports, and some other 'grey' literature is most likely to be held by H.E.R.s but is often poorly referenced and is unlikely to be recorded here, or elsewhere, but some suggestions can be found here.
The possible site or monument is represented on maps as a point location. This is a guide only. It should be noted that OS grid references defines an area, not a point location. In practice this means the actual center of the site or monument may often, but not always, be to the North East of the point shown. Locations derived from OS grid references and from latitude longitiude may differ by a small distance.
Further information on mapping and location can be seen at this link.
Please help to make this as useful a resource as possible by contacting Gatehouse if you see errors, can add information or have suggestions for improvements in functality and design.
Help is acknowledged.
This record last updated 15/08/2017 15:56:49

Home | Books | Links | Fortifications and Castles | Other Information | Help | Downloads | Author Information | Contact