Open all year, daily 1st April to 30th September : 09.00 – 21.00 1st October to 31st March : 09.00 – 19.00 Bolingbroke Castle is in the village of Old Bolingbroke.

It is signposted off the Coningsby to Spilsby A155 road between East Kirkby and West Keal and the B1195 road between Horncastle and Spilsby. Location Map.

Today, only the lower sections of this 13th. Century castle remain. It was built in about 1220 by Randulph de Blundevill, Earl of Lincoln. However, by 1815, the last remaining part - the gatehouse - had collapsed.

The original walls were in an irregular hexagon with round towers on five of the corners. The gate was two towers built about three metres apart. Leading to a portcullis further inside, was a drawbridge spanning the moat. The moat encircled an area about 80 metres in diameter. The six walls were two metres wide and varied in length from 15 to 30 metres long.

Henry Bolingbroke was born here in 1366; he later became Henry IV, king of England.

The Castle and grounds are managed by the Lincolnshire Heritage Trust