Wikipedia
Trellech (occasionally spelt Trelech, Treleck or Trelleck; modern ) is a village and parish in Monmouthshire, south-east Wales, located on the B4293 road about south of Monmouth and north-north-west of Tintern. The name of the village derives from Welsh and means "the town (tre) of slates (llech)"; there are three standing stones close to the village, known as Harold's Stones. The church of St Nicholas is a Grade I listed building. The village is located on a plateau between the valleys of the Usk to the west and Wye to the east.
Although a relatively small village in modern times, it was one of the largest towns in Wales in the 13th century, and is now the location of archaeological investigations to determine its extent and role at that time. The village is designated as a Conservation Area, and gives its name to the community of Trellech United, in which it is located. There are historically 26 known spellings of the village name; on each of the three roads entering the village, signs give a different spelling - Trellech, Trelleck and Trelech.