Monmouth is the historic county town of Monmouthshire in Wales as well as likewise a community. Located where the River Monnow signs up with the River Wye, simply 2 miles (3.2 km) of the border with England. The community is 30 miles (48 kilometres) northeast of Cardiff, and 113 miles (182 km) west of London. It is within the Monmouthshire local authority, as well as the legislative constituency of Monmouth. Monmouth's population in the 2011 census was 10,508, increasing from 8,877 in 2001. The town was the site of a little Roman fort, Blestium, and also became developed after the Normans built a castle here after 1067. Its middle ages stone gated bridge is the just one of its type continuing to be in Britain. The castle later entered the ownership of the House of Lancaster, as well as was the birthplace of King Henry V in 1387. In 1536, it became the county town of Monmouthshire. A market town as well as a focus of academic and social tasks for the surrounding rural area, Monmouth has come to be a tourism centre at the heart of the Wye Valley.