Trellech sits just 2 miles within the Welsh border in the ancient county of Monmouthshire in South East Wales. Historically, there have been lengthy campaigns between the English and the Welsh over who should lay claim to Monmouthshire, with the English insisting it should be in Wales and the Welsh insisting it should be in England. Eventually in 1974, after an unlucky throw of the dice in the county council chambers, Monmouthshire was determined to be in Wales, much to the disgust and annoyance of the council. Monmouthshire is to be considered a foster child of a county, currently in the care of the Welsh due to it having a troubled upbringing and absent geographical parents.