Ballyknockan Castle, Ballyknockan, Co. Laois
Ballyknockan Castle stands as a modest but intriguing remnant of late medieval Ireland, its weathered limestone walls rising from the low-lying countryside of County Laois.
Ballyknockan Castle, Ballyknockan, Co. Laois
Once owned by Sir Thomas Colclough in 1598, this small tower house measures approximately 8.7 metres north to south and 8 metres east to west, perched on a slight rise that once commanded views across the surrounding flat lands. Today, only the lower portions of the northern, eastern and southern walls survive to a maximum height of about 4 metres, built from roughly coursed rubble limestone without the decorative quoins that might have graced grander structures of its era.
The castle’s ground floor reveals fascinating architectural details that speak to both its defensive purpose and daily life within its walls. A barrel vault with wicker centring still spans the ground floor chamber, which measures 4.4 metres north to south internally. The original entrance appears to have been located in the north wall, where a relieving arch marks its position, whilst a mural passage runs through the same wall, widening at the northeast corner in what was likely the beginning of a spiral staircase. In the southeast angle, a small garderobe provided basic sanitation, whilst an embrasure in the east wall was later adapted into a secondary entrance, measuring 1.55 metres wide.
The castle’s immediate surroundings hint at a more complex historical landscape. A stream meanders to the west and south of the tower, whilst 22 metres to the north, an old fosse or trackway runs east to west, measuring 8 metres wide and up to half a metre deep. Just southeast of this track lies a small enclosure, 41 metres by 55 metres, defined by field banks and an outer fosse; though these earthworks likely date to the eighteenth or nineteenth century rather than the castle’s medieval heyday. Archaeological surveys conducted in 1994 have helped piece together this picture of a small but strategically positioned stronghold that once played its part in the complex tapestry of Irish territorial control.