The Artognou stone, sometimes erroneously referred to as the Arthur stone, is an archaeological artefact uncovered in Cornwall in the United Kingdom. It was discovered in 1998 in securely dated sixth-century contexts among the ruins at Tintagel Castle in Cornwall, a secular, high status settlement of sub-Roman Britain. It appears to have originally been a practice dedication stone for some building or other public structure, but it was broken in two and re-used as part of a drain when the original structure was destroyed. Upon its discovery the stone achieved some notoriety due to the suggestion that "Artognou" was connected to the legendary King Arthur, though scholars such as John Koch have criticized the evidence for this connection. The stone is on display at the Royal Cornwall Museum.
The Artognou stone
A copy on display in Tintagel
Tintagel Castle is a medieval fortification located on the peninsula of Tintagel Island adjacent to the village of Tintagel (Trevena), North Cornwall in the United Kingdom. The site was possibly occupied in the Romano-British period, as an array of artefacts dating from this period have been found on the peninsula, but as yet no Roman-era structure has been proven to have existed there. It was settled during the early medieval period, when it was probably one of the seasonal residences of the regional king of Dumnonia. A castle was built on the site by Richard, 1st Earl of Cornwall in the 13th century, during the High Middle Ages. It later fell into disrepair and ruin.
The outer and upper wards of Tintagel Castle with the village of Tintagel in the distance.
The Victorian courtyard wall
Ruins of the castle in 2005
Remains of the 13th-century Tintagel Castle in 2016