[3] The site is now in the care of the English Heritage charity, as both a Grade I listed building[2] and a Scheduled Ancient Monument.

He paid John 2000 marks for the lordship of the Peak, but the Crown retained possession of Bolsover and Peveril Castles.

His son, the George Talbot, 6th Earl of Shrewsbury was the keeper of Mary, Queen of Scots at Chatsworth House.

In 1574, two Scottish servants in the stable at Bolsover, Alexander Hamilton and John Stewart, were suspected of carrying letters secretly to Mary.

[12][13] The building of the castle was continued by Cavendish's two sons, William and John, who were influenced by the Italian-inspired work of the architect Inigo Jones.

William Cavendish, who was created Marquess of Newcastle in 1643 and Duke of Newcastle-upon-Tyne in 1665, added a new hall and staterooms to the Terrace Range, and by the time of his death in 1676 the castle had been restored to good order.

[14] The main usage of the building extended over twenty years, and it is presumed that the family lived at the castle towards the end of that period.

[19] Bolsover Castle is a Scheduled Ancient Monument,[1][20] a "nationally important" historic building and archaeological site which has been given protection against unauthorised change.