Welsh Bicknor () is an area in the far south of the English county of Herefordshire. Despite its name, it is not now in Wales, but it was historically a detached parish (exclave) of the county of Monmouthshire. It lies within a loop of the River Wye and covers . History Courtfield, the manor house of Welsh Bicknor, was originally known as Greyfield or Greenfield (the Welsh colour glas originally referred to a scale of colours including greys, greens and blues). The name altered after King Henry V of England had lived there as a young child of eight, following the death of his mother Mary de Bohun, under the care of Lady Margaret Montacute, wife of Sir John Montacute, 3rd Earl of Salisbury, long before his father, King Henry IV, usurped the throne of King Richard II. An effigy of Lady Margaret Montacute can be seen in Welsh Bicknor church and her plain tomb is beside the altar in Goodrich church. As its name suggests, Welsh Bicknor has close ties with Wales, having been a detached parish of Monmouthshire, although adjacent to English Bicknor and Lydbrook, which are part of Gloucestershire. The manor house and surrounding land of Welsh Bicknor belonged to the Vaughan family. However, in 1651 Richard Vaughan, who was a Catholic, had his land sequestered and given to Phillip Nicholas of Llansoy, in Monmouthshire, leading to the unusual situation of the exclave. It has been deemed part of Herefordshire since the Counties (Detached Parts) Act 1844. Religious dissension within the Vaughan families continued for several generations. In 1715, a John Vaughan (presumably one of Richard's descendants) refused the oath of allegiance to George I. He had estates in the several counties of Monmouthshire, Radnorshire, Herefordshire, and Gloucestershire valued at £1,000 per annum. In 1719 he was fined for not attending church. A later generation, in the person of Richard Vaughan, joined Prince Charles Edward Stuart's army in 1745. Vaughan took part in the Battle of Culloden and followed the Prince into exile. He and his brother William Vaughan were outlawed and their property seized, while they themselves fled to Spain and became officers in the army of that country. Both married Spanish women and some of their descendants settled in the home of their adoption and became grandees of Spain. Richard Vaughan died in Barcelona in 1795 but his son William eventually returned to Wales and