What is recorded here

Tregrug Castle began as an Anglo-Norman earth and wood motte in the first half of the 13th century before stone rose on a new site, possibly under Bogo de Clare in the 1280s. It endured Madog ap Llywelyn’s wars, royal repair bills, Despenser’s greed, Mortimer ownership and Civil War refortification, yet no one knows whether Owain Glyndŵr’s uprising broke it or merely passed it by. What remains is a mound: a castle that kept changing hands, being rebuilt, being forgotten and being remembered only through the shape it left behind.

The National Monuments Record of Wales records Tregrug Castle;Llangybi, Earthwork Castle;Llangibby Castle Mound as Motte and Bailey from the Medieval; Post Medieval period. The saved point comes from the official national record. Inclusion does not by itself mean that the public may enter the place.

Built during the Medieval period, likely by a Norman lord or local Welsh magnate, Tregrug Castle is remembered as an earthwork motte-and-bailey structure reflecting early medieval military architecture in Wales. Its remains contribute to understanding regional settlement and defense patterns in the post-Conquest era.

The historic-place record does not grant public access. Check current conditions and ownership before entering land or a building.