The only ancient castles in Derbyshire, of which any considerable remains at present exist are those of Castleton and Codnor; that of Castleton
was formerly known by the name of Peak Castle; and is situated on the
summit of a high rock, nearly over the entrance of the great cavern,
and inaccessible except on one side. It appears to have originally consisted of a plain wall enclosing an area of moderate dimensions, with two
small towers on the north sides, and a keep near the south-west corner,
being a square tower, measuring 38 feet 2 inches on the outside, and 21
feet 4 inches by 19 feet 3 inches within the walls. It is most probable
that this fortress was erected by William Peverell, to whom the manor
was given by William the Conqueror, though Mr. King, who has given
a particular account of it in the sixth volume of the Archæologia (fn. 1) ,
supposes it to have been built during the Saxon Heptarchy: great part of
the walls of the keep, and some remains of the other building are still
existing. (fn. 2)
Of Codnor Castle in the parish of Heanor, the ancient seat of the Grey
family, there are considerable remains, part of which are now converted
into a farm-house. There is a view of them, taken in 1727, in the first
volume of Buck's Antiquities. (fn. 3) No part of the ancient castle of Bolsover
at present exists; the square castellated building with irregular turrets
now called Bolsover-castle (fn. 4) , was erected in the reign of James I.
||ther is a view of this castel in the first volume of Buck's Antiq. pl.55.
||Ibid. pl.53 and 54.