Monmouth is the historical county town of Monmouthshire in Wales and also a community. Situated where the River Monnow joins the River Wye, just 2 miles (3.2 kilometres) of the border with England. The town is 30 miles (48 kilometres) northeast of Cardiff, as well as 113 miles (182 kilometres) west of London. It is within the Monmouthshire local authority, and 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 ended up being developed after the Normans constructed a castle here after 1067. Its middle ages rock gated bridge is the only one of its kind continuing to be in Britain. The castle later entered into the belongings of the House of Lancaster, and was the birth place of King Henry V in 1387. In 1536, it became the county town of Monmouthshire. A market town as well as a focus of instructional as well as cultural activities for the bordering rural area, Monmouth has actually come to be a tourist centre at the heart of the Wye Valley.