Maen Huail - Credit: Wikimedia Commons
Maen Huail is a stone block at St Peter's Square, in the centre of Ruthin, Denbighshire, North Wales. A circular plaque next to it states "Maen Huail on which tradition states, King Arthur beheaded Huail, brother of Gildas the historian". The stone was recorded in 1699 as being in the middle of the road, and now stands on a concrete plinth against the half-timbered wall of the Barclays Bank building, a 20th-century copy of the now mainly destroyed Exmewe Hall.. Cadw SAM: DE030: Maen Huail Historic Stone Read more on Wikipedia
Source: en.wikipedia.org