Bolsover Castle is a historic fortress and stately residence located in the town of Bolsover in north-east Derbyshire, overlooking the surrounding countryside from a prominent hilltop position. The site has a long and layered history, with the original castle first established in the 12th century by the Peverel family, Norman lords who were granted land in the area following the Norman Conquest. The medieval fortress gradually fell into decline, but in the early 17th century the site was transformed by Sir Charles Cavendish, who built an elaborate new residence on the ruins of the earlier castle. The most recognisable structure today, known as the “Little Castle,” was completed around 1621 and designed as a luxurious retreat rather than a defensive stronghold. Bolsover Castle became famous as a place of entertainment and aristocratic display. The Cavendish family hosted lavish gatherings, theatrical performances, and royal visits at the castle, including a masque written by the playwright Ben Jonson during a visit by King Charles I in 1634.  During the English Civil War (1642–1651) the castle was captured by Parliamentarian forces and deliberately damaged, leaving parts of the complex in ruins. It was later restored and expanded by William Cavendish, Marquess of Newcastle, who added grand state rooms and the impressive terrace overlooking the countryside. Today Bolsover Castle is managed by English Heritage and is recognised as a Grade I listed building and Scheduled Ancient Monument due to its national historical importance. Visitors can explore the ornate rooms of the Little Castle, the grand terrace range, and the ruins of the earlier medieval fortifications, offering a glimpse into centuries of Derbyshire’s history and aristocratic life.