[citation needed] Delvin Castle (or Nugent Castle), now a ruin, was built in 1181 by Hugh de Lacy, Lord of Meath for his brother-in-law, Gilbert de Nugent.

The ruins of Nugent Castle (not publicly accessible) remain near the centre of the town.

[3] A second castle was built several centuries later, hundreds of metres from the centre of the Delvin settlement of that time.

This building, known as Clonyn Castle, is situated south of Delvin between the N52 and the Collinstown road.

[6] In addition to other developments, plans were unveiled for the provision of a new sports and leisure facility within the village To date, a walking track, floodlit football pitch and basic changing facilities have been provided on site.