MAELIENYDD

'Maelienydd', sometimes spelt 'Maeliennydd', was a cantref and lordship in east central Wales covering the area from the River Teme to Radnor Forest and the area around Llandrindod Wells. The area, which is mainly upland, is now in Powys.
Originally an independent kingdom, Maelienydd became an area of great strategic importance after the Norman conquest of England, due to its position. It appears to have come under Norman control before 1093, but during the 12th century became a battleground between the Welsh rulers of the area, notably Cadwallon ap Madog, and the Mortimer family. In 1179 Cadwallon was killed by the retainers of Roger Mortimer when he was returning from the court of King Henry II of England. Mortimer was imprisoned by the king for this and Maelienydd was inherited by Cadwallon's son, Maelgwn ap Cadwallon. On Roger Mortimer's release from prison he seized much of the lordship, though Maelgwn was later able to recover it with the help of Rhys ap Gruffydd of Deheubarth. After Rhys' death the Mortimers again took possession.
The struggle for the rule of Maelienydd continued during the 13th century, involving the kings of England and Llywelyn the Great and Llywelyn the Last of Gwynedd. A number of castles were built here, notably Cefnllys Castle and Cymaron Castle. One of the main versions of Welsh law, the Cyfnerth Redaction, is thought to originate from Maelienydd when it was in the sphere of influence of Rhys ap Gruffydd of Deheubarth in the second half of the 12th century.
Maelienydd was one of two cantrefs brought together to form Radnorshire. The name survives for the general area.

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References

References

R.R. Davies (1987) ''Conquest, coexistence and change: Wales 1063 - 1415'' (Clarendon Press) ISBN 978-0-19-821732-9
W.H. Howse (1949) ''Radnorshire'' (E.J. Thurston)