Barnard Castle is a market community in Teesdale, County Durham, England. It is named after the castle around which it was developed. It is the primary settlement in the Teesdale area, and also is a preferred tourist destination. The Bowes Museum has the best collection of European penalty as well as attractive arts in the North of England, housed in a wonderful 19th-century French-style estate. Its most renowned exhibition is the 18th-century Silver Swan robot, though art includes work by Goya and also El Greco. Barnard Castle sits on the north bank of the River Tees, opposite Startforth and 21 miles (34 kilometres) south-west of the county town of Durham. Nearby towns consist of Bishop Auckland to the north-east, Darlington to the east and Richmond in North Yorkshire to the south-east. Barnard Castle's largest single employer is GlaxoSmithKline which has a manufacturing facility on the borders of town. Barnard Castle is for all objectives (historic, ceremonial and management) situated in County Durham. The area boundary with the North Riding of Yorkshire was readjusted in 1967: that part of the town of Barnard Castle historically in Yorkshire was added to County Durham. Barnard Castle was the administrative centre of the previous Teesdale district of County Durham up until its abolition on 1 April 2009. The community is now carried out by Durham County Council Unitary Authority, as major authority and by Barnard Castle Town Council, as a parish. The Community Council chooses a ritualistic Town Mayor every year. It is part of the Bishop Auckland legislative constituency, which as of 2017 is represented in parliament by Helen Goodman of Work, though with a tiny majority over the Conservatives. It is in the North East England area, which functions as a constituency for the European Parliament. Between 1894 and also 1967 the community was administratively part of Barnard Castle Urban Area.