| Colwyn Castle | |
|---|---|
| Llansantffraed, Powys | |
 Colwyn Castle near Hundred House, Glascwm, Powys. The Roman Fort in which the later castle was built is clearly visible, as is the castle earthworks. | |
  Colwyn Castle | |
| Coordinates | 52°10′37″N 3°18′23″W / 52.1769°N 3.3065°W |
| Grid reference | grid reference SO10765399 |
Colwyn Castle was a medieval castle near Llansantffraed in Wales. In the Manor of Glascwm, in the county of Radnorshire.It was built on the site of a Roman fort. The castle was captured in 1196 by Rhys ap Gruffydd, who was campaigning against the Normans.[1] It was rebuilt in 1242 by Ralph de Mortimer to protect the lordship of Maelienydd, which he had recently acquired.[2]
- ^ Jones 1941, pp. 136–137
- ^ Lewis 1849, pp. 85–98