Llanthomas Motte

Llanthomas Motte stands in the Welsh Marches near the River Wye in Wales, United Kingdom. The site was established by the Normans in the late eleventh or early twelfth century as part of a local lordship subordinate to the marcher lordship of Hay and formed one element in a network of contemporary strongpoints.

The local landscape carried older place‑names and traditions before Norman occupation. Antiquarian commentary links the area with the saint known as Eigen (Eigon) and with memories that invoked the Roman period and a pre‑conquest settlement called Trefynys. The church of St. Eigon is recorded between 1148 and 1155, and parts of the present church fabric date from the thirteenth century.

The motte occupies a high point overlooking the Wye and kept visual contact with neighbouring mottes such as Llowes Castle Tump. Sixteenth‑century visitors such as John Leland described a castle or tower here, while later antiquarians interpreted those references as possible evidence of a timber tower or later stone work. Tudor accounts also noted an “ancient mansion” on the lordship and recorded high‑status residents in the post‑medieval period.

Antiquarians proposed that the motte may have been built on an older barrow and many maps labelled the feature as a tumulus until modern remapping. Small investigations have tested parts of the site: a 1921 summit trench produced no recorded finds, while a 1988 programme of trenching to the south‑east identified features interpreted as part of a bailey, including stone‑filled deposits, charcoal in a basal fill and a sherd from the base of a medieval cooking pot that suggested domestic activity, possibly a kitchen.

The site is recognised in regional records and protected as a scheduled monument; national and regional records (PRNs) are held in archival services, and from 2024 many Welsh archaeological services have been coordinated through Heneb.