Fish-pond, Townparks, Co. Kildare

In a poorly drained field on the flood-plain of the River Barrow, a series of low rectangular earthworks sits quietly in the landscape, visible from the ground and detectable on aerial photographs. They may be medieval fish-ponds, the kind of managed water feature that a prosperous lord or a religious community would have maintained to supply fresh fish through fasting seasons and feast days alike. Or they may be nothing more than post-medieval drainage channels, cut to coax water off waterlogged ground. The ambiguity is part of what makes the site interesting: a place that might be mundane infrastructure, or might be a trace of a self-sufficient medieval world organised around the River Barrow.

The broader setting gives the fish-pond theory some weight. Both features in the immediate landscape were founded by the same man, Richard de St. Michael, in the thirteenth century. His hall house, known as Woodstock Castle, a fortified residence typically comprising a simple rectangular stone structure raised above ground level, stands on dry ground to the south-east, overlooking the Barrow and what may have been a fording point across the river. Some 520 metres to the south-south-east, Richard also founded a house of the Crutched Friars, a mendicant order whose name derived from the cross they carried or wore, and who depended on local resources and patronage to sustain their community. A well-managed fish-pond on the flood-plain between a hall house and a friary would have made practical sense in that world. The 1656 Down Survey map, one of the earliest systematic cartographic surveys of Ireland, adds another layer: it shows a cluster of buildings on the west bank of the Barrow in exactly the space between Woodstock Castle and the friary, suggesting this stretch of riverbank supported a small but organised settlement well into the seventeenth century.

The rectangular earthworks remain visible on the ground, though the waterlogged and low-lying nature of the field means conditions underfoot are often soft. The River Barrow runs just 80 metres to the north-east, and the flatness of the flood-plain makes the slight relief of any earthwork readable once you know to look for it.