Ancient Monuments

History on the Ground

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Maen Madoc

A Scheduled Monument in Ystradfellte, Powys

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Latitude: 51.8302 / 51°49'48"N

Longitude: -3.5706 / 3°34'13"W

OS Eastings: 291869

OS Northings: 215783

OS Grid: SN918157

Mapcode National: GBR YF.VYT4

Mapcode Global: VH5G0.287B

Entry Name: Maen Madoc

Scheduled Date:

Source: Cadw

Source ID: 806

Cadw Legacy ID: BR018

Schedule Class: Religious, Ritual and Funerary

Category: Inscribed stone

Period: Early Medieval

County: Powys

Community: Ystradfellte

Traditional County: Brecknockshire


The monument comprises the remains of a standing stone, which probably dates to the early medieval period.

The stone stands on upland moorland beside the Roman road between the forts at Neath and Brecon. It was excavated and re-erected in 1940. It is a straight-sided rectilinear stone c. 2.7 m high standing upright on a stone platform level with the ground c. 2 x 2 m square. There is a vertical inscription on the south-west side to Dervacus son of Justus. The other sides are bare. No burial was found during excavation.

The monument is of national importance for its potential to enhance our knowledge of early medieval burial and ritual practices. It is an important relic of a funerary and ritual landscape and retains significant archaeological potential. There is a strong probability of the presence of intact burial or ritual deposits, together with environmental and structural evidence. Standing stones are often part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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