Strata Marcella

In a flat field beside the Severn two miles north of Welshpool, the Cistercians built the largest abbey church in Wales. You would not know it from looking.

The foundation

Strata Marcella — Ystrad Marchell in Welsh — was founded in 1170 by Owain Cyfeiliog, prince of southern Powys and a poet of some reputation, who eventually retired into the abbey himself and was buried there.

That patronage matters. Cistercian houses in Wales were overwhelmingly founded and funded by Welsh princes rather than by Marcher lords, which made them politically significant institutions as well as religious ones. They were repositories of Welsh chronicle and genealogy and they were sometimes treated with suspicion by the English crown accordingly.

The abbey held extensive granges across Montgomeryshire and ran sheep on a considerable scale.

The size

Excavation in 1890 by Stephen Williams established the plan, and the church proved to be around 83 metres long — larger than any other Cistercian church in Wales, including Tintern and Valle Crucis.

Why a house of moderate wealth in mid Wales built on that scale is not clear. Ambition seems the honest answer, and it is the same pattern as Abbeycwmhir in Radnorshire, which planned the longest nave in Wales and never completed it.

The disappearance

Strata Marcella was dissolved in 1536. What followed was unusually thorough.

The site is on good flat farmland beside a river, which means the stone was easily carted and the ground was worth ploughing. Both happened. Fragments went into buildings in Welshpool and the surrounding parishes, and the rest of the site was levelled and cultivated.

Timber from the abbey is said to have been reused in buildings in Welshpool, and some carved stonework in local churches is attributed to it.

Today there is a field, a scheduled area, and an interpretation panel. Aerial photography and geophysics show the plan below the surface; nothing shows above it.

Why visit

Honestly, most people should not. There is nothing to see.

But it is worth knowing about, because it is the clearest example in Powys of a category of loss that the county has a great deal of. The visible past is the part that was too remote, too poor or too awkward to be worth removing. What stood on good ground beside a road tends to be gone.

Abbeycwmhir survived as foundations because it is at the end of a Radnorshire valley that nobody needed. Strata Marcella was two miles from a market town on the Severn plain, and that was that.

Where the material is

Some carved stone and tiles from the excavations are held by Powysland Museum in Welshpool, which is the sensible place to go instead.