Cefnllys Castle ( cy, Castell Cefn-llys, ) was a
medieval
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
spur castle in
Radnorshire
, HQ = Presteigne
, Government = Radnorshire County Council (1889–1974) Radnorshire District Council (1974–1996)
, Origin =
, Status = historic county, administrative county
, Start ...
(now part of
Powys),
Wales
Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...
. Two successive masonry castles were built on a ridge above the
River Ithon
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...
known as Castle Bank ( cy, Craig y Castell, translation=castle rock) in the thirteenth century, replacing a wooden
motte-and-bailey castle constructed by the
Normans nearby. Controlling several communication routes into the highlands of
Mid Wales
Mid Wales ( cy, Canolbarth Cymru or simply ''Y Canolbarth'', meaning "the midlands") or Central Wales refers to a region of Wales, encompassing its midlands, in-between North Wales and South Wales. The Mid Wales Regional Committee of the Senedd ...
, the castles were strategically important within the
Welsh Marches
The Welsh Marches ( cy, Y Mers) is an imprecisely defined area along the border between England and Wales in the United Kingdom. The precise meaning of the term has varied at different periods.
The English term Welsh March (in Medieval Latin ...
during the
High Middle Ages
The High Middle Ages, or High Medieval Period, was the period of European history that lasted from AD 1000 to 1300. The High Middle Ages were preceded by the Early Middle Ages and were followed by the Late Middle Ages, which ended around AD ...
. As the seat of the fiercely contested
l