Newport is a city and unitary authority area in south eastern Wales, on the River Usk close to its convergence with the Severn Estuary, 12 miles (19 km) northeast of Cardiff. At the 2011 census, it was the third largest city in Wales, with a population of 145,700. The city forms part of the Cardiff-Newport metropolitan area, with a population of 1,097. Newport has actually been a port given that medieval times, when the very first Newport Castle was constructed by the Normans. The town outgrew the earlier Roman town of Caerleon, promptly upstream, as well as gained its first charter in 1314. It grew considerably in the 19th century, when its port became the emphasis of coal exports from the eastern South Wales Valleys. Up until the rise of Cardiff from the 1850s, Newport was Wales' biggest coal-exporting port. Newport was the site of the last large armed insurrection in Britain, the Newport Climbing of 1839 led by the Chartists. This was led by the Chartist John Frost which caused the re-branding of the Duffryn High School into John Frost School. In the 20th century, the anchors declined in value, but Newport remained a crucial production as well as design centre. It was granted city status in 2002. Newport organized the Ryder Cup in 2010 as well as was the location for the 2014 NATO summit.