Castle, built in circa 1220-30 and enlarge in C14. It was twice rebuilt in the C15 and C16. It withstood a siege during the Civil War in 1643, after which it was sleighted, deserted and fell into ruin, now visible only as a series of earthworks and ruins. It was excavated between 1965 and 1973. The castle was of compact enclosure design complete with a large gatehouse, round towers and a moat. Today the castle is a ruin with only the ground floors of the towers remaining and the lower parts of the walls. Squared greenstone rubble, ashlar dressings. Courtyard plan with octagonal and round corner towers. Walls stand to about 6'0". Built by Randulph de Blundeville, the Earl of Lincoln, became the home of the powerful John of Gaunt in C14 and was the birthplace of his son, Henry Bolingbroke, who later became King Henry IV. Brown writes held 1154-98 by Roumare (sometime earl Lincoln) 1198 on held by Blundeville earl Chester. The strange earthwork by the castle has been described as fishponds in the past but probably represents a Civil War fort.

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Name	Bolingbroke Castle
Alternative Names
Historic County	Lincolnshire
Civil Parish	Bolingbroke
Type	Masonry Castle
Confidence	Certain
Remains	Masonry footings
Listed	Grade 1
Scheduled Ancient Monument	Yes
Ordnance Survey Reference	TF349649
Eastings	534930
Northing	364900
Images of England Reference	196127
PastScape Reference	354204
Historic Environment Record	43574

Multi Map

StreetMaps

Books

• Salter, Mike, 2002, The Castles of the East Midlands (Malvern) p44-5 [plan]
• Pettifer, A., 1995, English Castles, A guide by counties (Woodbridge) p141-2
• Roffe, David, 1993, 'Castles' in Bennett, S. and Bennett, N. (eds), An Historical Atlas of Lincolnshire (University of Hull Press) p40-1
• King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol1 p260
• Fry, P.S., 1980, Castles of the British Isles (David and Charles) p191-2
• Colvin, H.M., Ransome, D.R. and Summerson, John, 1975, The history of the King's Works Vol3: 1485-1660 (part 1) (London) p234-7
• Renn, D.F., 1973 (2edn), Norman Castles of Britain (John Baker)
• Colvin, H.M., Brown, R.Allen and Taylor, A.J., 1963, The history of the King's Works Vol2: the Middle Ages (London: HMSO) p571-2
• Harvey, Alfred, 1911, Castles and Walled Towns of England (Methuen and Co)
• Mackenzie, J.D., 1897, Castles of England (Heinemann) Vol1 p426-7
• Timbs, J. and Gunn, A., 1872, Abbeys, Castles and Ancient Halls of England and Wales Vol3 (London) p16-7
• Weir, 1820, History and Descriptive Sketches of Horncastle (London) p67, 71-3

Antiquarian

• William Camden, 1607, Britannia [http://www.philological.bham.ac.uk/cambrit/lincseng.html#lincs22]
• Chandler, John, 1993, John Leland's Itinerary: travels in Tudor England (Sutton Publishing) p289, 300, 304
• Toulmin-Smith, Lucy (ed), 1910, The itinerary of John Leland in or about the years 1535-1543 (Bell and Sons; London) Vol5 p36 http://www.archive.org/details/itineraryofjohnl05lelauoft

Journals

• Drewett, Peter and Freke, D J., 1974, 'The Great Hall at Bolingbroke Castle, Lincolnshire' Medieval Archaeology Vol18 p163-5 [downloadable via http://ads.ahds.ac.uk/catalogue/resources.html?medarch]
• Thompson M.W., 1974, 'Old Bolingbroke Castle' Archaeological Journal Vol131 p314-7
• Thompson M.W., 1969, 'Further work at Bolingbroke Castle, Lincolnshire' Medieval Archaeology Vol13 p216-7 and plate [downloadable via http://ads.ahds.ac.uk/catalogue/resources.html?medarch]
• Thompson M.W., 1966, 'The origins of Bolingbroke Castle, Lincolnshire' Medieval Archaeology Vol10 p152-8 [downloadable via http://ads.ahds.ac.uk/catalogue/resources.html?medarch]
• Thompson M.W., 1965, 'An alert in 1318 to the constable of Bolingbrook Castle, Lincs' Medieval Archaeology Vol9 p167-8 [downloadable via http://ads.ahds.ac.uk/catalogue/resources.html?medarch]
• Brown, R, Allen, 1959, 'A List of Castles, 1154–1216' English Historical Review Vol74 p249-280 [Reprinted in Brown, R. Allen, 1989, Castles, conquest and charters: collected papers (Woodbridge: Boydell Press) p90-121] http://links.jstor.org/sici?sici=0013-8266%28195904%2974%3A291%3C249%3AALOC1%3E2.0.CO%3B2-P
• Massingberd, 1858, Associated Architectural Societies' reports and papers [Lincoln, York, Northampton, Bedford, Worcester, Leicester and Sheffield] Vol4 p230-46 [history of little merit]
• 1821, Gentleman's Magazine pt2 p305-6 http://babel.hathitrust.org/cgi/pt?id=mdp.39015027525107

Primary Sources

• Rickard, John, 2002, The Castle Community. The Personnel of English and Welsh Castles, 1272-1422 (Boydell Press) [lists sources for 1272-1422] p288-9

Unpublished

• Archaeological Project Services, 2002, Bolingbroke Castle, Old Bolingbroke. LCNCC:2002.327
• English Heritage, 1994, Revised Scheduling Document 22623