Lincoln Castle was one of his first.

The next night the Lincoln Castle (a key defensive structure) was stormed with the use of scaling ladders.

The only remaining piece of the St Catherine's cross is in Lincoln Castle.

One of only four surviving originals of the document is preserved in Lincoln Castle.

The route includes travelling through the grounds of Lincoln Castle, something not normally possible without paying an entry fee.

Lincoln Castle is bounded by stone wall, with ditches on all sides except the south.

The only remaining piece of the Eleanor cross left that survives is kept in Lincoln Castle.

Most of his writings are dated from Lincoln Castle.

Building work on Lincoln Castle began in 1068, followed by the Cathedral from 1072 to 1075.

Lincoln Castle served this route until 1978, under Sealink management, when known to be unable to pass a boiler inspection.