At the centre of a moated site in Ballindoolin, County Kildare, there sits a rectangular earthwork so subtle that most walkers would cross it without a second glance. What was once a defined structure, roughly nineteen metres long and a little over eight metres wide, is now little more than a grassed-over bank and a shallow surrounding fosse, the fosse being the ditch that typically encircled a defended enclosure, here only about two metres across and barely twenty centimetres deep. Its dimensions are modest but deliberate, and its position, set squarely at the level centre of the wider moated enclosure, suggests something that mattered to the people who built it.

The site belongs to a broader moated complex, and the rectangular building within it is locally remembered as having once been a church. That tradition is unverified but not implausible. Moated sites of this kind were common in medieval Ireland, particularly between the thirteenth and fifteenth centuries, and they served a range of purposes, from defended farmsteads to manorial centres associated with the Anglo-Norman settlement of the country. A church or chapel positioned within such an enclosure would not be unusual. Without excavation, the precise function and date of this particular structure remain open questions, and the faint earthworks offer few further clues at surface level.