Cannon Hall is a country house museum located between the villages of Cawthorne and High Hoyland north of Barnsley, South Yorkshire, England. Originally the home of the Spencer and later the Spencer-Stanhope family, it now houses collections of fine furniture, paintings, ceramics and glassware. It also houses the Regimental Museum of the 13th/18th Royal Hussars (Queen Mary's Own) and the Light Dragoons. Although there was a house on the site when the Domesday Survey of 1086 was conducted, Cannon Hall picked up its current name from the 13th-century inhabitant Gilbert Canun. By the late 14th century Cannon Hall was in the ownership of the Bosville family of Ardsley, now a suburb in south-east of Barnsley. It was during this period that the most violent event in Cannon Hall's history took place. The Bosvilles had let the Hall out to a family (whose name has been lost), the daughter of whom was romantically involved with a man named Lockwood. Lockwood had been involved in the murder of Sir John Eland, the Sheriff of the County. The tenant, afraid of the position in which he could find himself accommodating a fugitive, sent word to Bosville. Bosville's men arrived at Cannon Hall, where the fugitive was slain in a cruel and violent manner. Cannon Hall's history settled down after this notably unpleasant episode. In 1660 the estate was purchased by John Spencer, a Welsh hay-rake maker. The Spencer family had arrived in Yorkshire from the Montgomeryshire in the Welsh borders, a safer place than Wales for those with Royalist sympathies such as those of the Spencers (John Spencer even managed to get a pardon from Charles II himself when John was held in York prison on manslaughter charges). The Spencer family quickly became active in the local iron and coal industry, eventually building up a huge empire and funding the rebuilding of Cannon Hall. The core of the present Cannon Hall was built at the opening of the 18th century for John Spencer, possibly by John Etty of York, more surely with interior joinery by William Thornton, another well-known local craftsman. It was enlarged with the addition of wings in 1764–67 by the premier mid-Georgian architect working in Yorkshire, John Carr. Subsequently the wings were heightened, giving the rather high-blocked mass seen today. The last member of the family, Elizabeth, sold the house to Barnsley Council in 1951. Cannon Hall Museum opened to the public in 1957.