Fortress

Dinerth Castle

United Kingdom Dyffryn Arth scheduled monument
Wikipedia Wikidata

About

The Castle of Dinerth (Welsh: Castell Dineirth, Castell Dinerth, or Castell Allt Craig Arth) is a Welsh castle located near Aberarth, Ceredigion, west Wales that was completed c. AD 1110. It is also known as Hero Castle, presumably from the Norse hiro ("king's carl").