Pont Estyll Ringwork, Dan y Cefn

Has been described as a Possible Timber Castle (Ringwork), and also as a Possible Siege Work

There are cropmark/slight earthwork remains

NamePont Estyll Ringwork, Dan y Cefn
Alternative NamesLlanspyddid; Llansbyddyd; Bolgoed
Historic CountryBrecknockshire
Modern AuthorityPowys
1974 AuthorityPowys
CommunityGlyn Tarell

Set on relatively level ground, close by the Afon Tarell; a subcircular enclosure, about 22m east-west by 16m, defined by a bank and ditch, showing a west-facing entrance. (Coflein)

The monument comprises the remains of a well preserved castle-ringwork, which dates to the early part of the medieval period (c. AD 1066 - 1485). The earthwork lies in a field of semi-improved pasture immediately north of the Afon Tarell and immediately south of the A470. The ringwork survives as a sub-rectangular enclosure surrounded by a gently sloping bank with a slight ditch on the external western side. The bank encloses an area measuring 26m east/west by 23m north/south. The bank on the northern side is 0.8m high on the external edge and 1m high on the internal edge, on the eastern and western sides the bank is 0.8m high on the external edge and 0.4m high on the internal edge. On the southern side there is no bank, the steep scarp on the northern side of the Afon Tarell forming the edge of the ringwork. (Scheduling Report)

Gatehouse Comments

Possible castle or siege work. Beside main road and by river crossing, opposite side of Afon Tarell from Cilwhybert Motte.

- Philip Davis

This site is a scheduled monument protected by law

Not Listed

The National Monument Record (Coflein) number(s)
County Historic Environment Record
OS Map Grid ReferenceSO008270
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  • Morgan, Gerald, 2008, Castles in Wales: A Handbook (Talybont: Y Lolfa Cyf.) p. 232 (listed)
  • Remfry, Paul, 1998, Castles of Breconshire (Logaston Press) p. 125
  • King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 1 p. 22


  • Browne, D.M., 1986, ‘Pont Estyll, Llansbyddyd’, Archaeology in Wales Vol. 26 p. 49
  • 1966, 'Medieval Britain in 1965' Medieval Archaeology Vol. 10 p. 193 (slight) online copy
  • 1965, 'Medieval Britain in 1964' Medieval Archaeology Vol. 9 p. 193 online copy
  • Talbot, E.J., 1964, 'Brecknockshire' Archaeology in Wales Vol. 4 p. 16