For other uses, see House of Mathrafal.
Mathrafal within Wales
Location Near Welshpool
Region Powys, Wales
Coordinates 52°41′17″N 3°17′15″W / 52.68806°N 3.28750°W / 52.68806; -3.28750Coordinates: 52°41′17″N 3°17′15″W / 52.68806°N 3.28750°W / 52.68806; -3.28750
Type Motte and Bailey Castle
Part of Capital of the Kingdom of Powys until 1160, then of Powys Wenwynwyn until 1212.
Length 90 m
Width 80 m
Founded 9th century
Abandoned 1212
Periods Medieval
Associated with

Bleddyn ap Cynfyn
Maredudd ap Bleddyn
Madog ap Maredudd
Owain Cyfeiliog

Gwenwynwyn ap Owain
Site notes
Excavation dates 1991
Archaeologists University of York
Condition Ruin - mainly earthworks remaining

Mathrafal near Welshpool, in Powys, Mid Wales, was the seat of the Kings and Princes of Powys probably from the 9th century until its destruction in 1212 by Llywelyn ap Iorwerth (Llywelyn the Great) of Gwynedd.


On the banks of the River Banwy, just above its confluence with the river Vyrnwy, about 5 km (3 miles) NE of Llanfair Caereinion and 10 km (6 miles) NW of Welshpool on the A495 at its junction with the B4389.


The site known today as "Mathrafal Castle" is a 90 m by 80 m compound defended by a bank and outer ditch on three sides, the fourth side being the river. Little remains of the original walls.[1]

Mathrafal is the original capital of the Kingdom of Powys,[2] in the cantref of Caereinion. After the division of Powys in 1160 it became the capital of the southern portion which eventually became known as Powys Wenwynwyn.[3]

This structure probably replaced an earlier hill fort, about 1 km away to the NW, which dates from around 656 at the time of the fall of the neighbouring Kingdom of Pengwern, or perhaps as early as 520 when the capital of Powys was moved from the old Roman town of Viroconium Cornoviorum (Wroxeter).[4]

The 35m by 25m by 5m high motte of Mathrafal Castle dates from around the end of the 12th century and was probably built either by Owain Cyfeiliog (circa 1170) or Robert de Vieuxpont on behalf of King John in 1212.[2] Prince Gwenwynwyn ab Owain of Powys moved his capital from Mathrafal to Welshpool (Y Trallwng) in 1212.[4] Later in 1212, Robert de Vieuxpont was besieged in the castle by the coalition forces of Gwenwynwyn and Llywelyn the Great, he was rescued by King John.[5] The castle was destroyed and never rebuilt.[6][7]

Excavations by the University of York around 1991 found an iron and bronze figurine of St Gwynllyw (or Woolos the Warrior) in a cavity in a window base.[8]


  1. "CPAT Regional Historic Environment Record - Mathrafal Castle, motte and bailey". CPAT.
  2. 1 2 "Mathrafal Castle". Castle Wales.
  3. Ulwencreutz, Lars (2013). Ulwencreutz's The Royal Families in Europe V. p. 50.
  4. 1 2 Davies, John (1990). History of Wales. Penguin.
  5. Lieberman, Max (2010). The Medieval March of Wales. Cambridge University Press. p. 126.
  6. "Mathrafal Castle". Gatehouse Gazetteer.
  7. Yorke, Philip (1887). The Royal Tribes of Wales. Liverpool: Isaac Foulkes. p. 50.
  8. Breverton, Terry. Wales' 1000 Best Heritage Sites. Amberley.

External links

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