Caereinion (fort of Einion) was a medieval cantref in the Kingdom of Powys,[1] or possibly it was a commote (cwmwd) within a cantref called Llŷs Wynaf.[2] It was divided into the manors of Uwch Coed and Is Coed.[3]

Cantrefi of Medieval Wales

It lay towards the south of the kingdom, bordering with the commote of Mochnant Uwch Rhaeadr of the cantref of Mochnant and the cantref of Mechain to the north, the commotes of Ystrad Marchell and Llanerch Hudol in the cantref of Ystlyg to the east, the cantrefi of Cedewain to the south and Cyfeiliog to the west.[4]

It roughly corresponds to the later hundred of Mathrafal.[5]

Castle Caereinion, Caereinion Fechan, Llanfair Caereinion, Llanerfyl, Llangadfan, Llangyniew and part of Berriew are within the territory of this cantref.[3]


  1. ^ Lewis, C P, ed. (2008). Anglo-Norman Studies XXX: Proceedings of the Battle Conference 2007. Boydell & Brewer. p. 189.
  2. ^ Carlisle, Nicholas (1811). A topographical dictionary of the Dominion of Wales (see e.g. Cyffin). London: Society of Antiquaries.
  3. ^ a b Richards, Melville (1969). Welsh Administrative and Territorial Units. University of Wales. ISBN 978-0900768088.
  4. ^ Rees, William (1951). An Historical Atlas of Wales from Early to Modern Times. Faber & Faber.
  5. ^ "Powys Local History Encyclopedia". Powys Local History Encyclopedia.

Coordinates: 52°41′N 3°17′W / 52.69°N 3.29°W / 52.69; -3.29