Ergyng (or Erging) was a Welsh kingdom of the sub-Roman and early medieval period, between the 5th and 7th centuries. It was later referred to by the English as Archenfield. Location The kingdom lay mostly in what's now western Herefordshire in England, its heartland between the River Monnow and River Wye. However, it also spread into modern Monmouthshire and east of the Wye, where sits the old Roman town of Ariconium (Welsh: Din Aricon) at Weston under Penyard from which its name may derive; it… (More on Ergyng)