Barretstown Castle, Ballymore Eustace
Situated to the north of the town of Ballymore Eustace is Barretstown Castle. The core of the castle is an old Eustace tower house of The Pale. The Eustaces were one of the most distinguished of the names that came to Ireland at the time of the Anglo-Norman invasion. While not multiplying to the same extent as the Burkes, Butlers, FitzGeralds or other great Hiberno-Norman families, the Eustaces were numerous enough to be classed in Petty's 'census' of 1659 among the principal Irish names in four baronies of Kildare. The town of Ballymore Eustace was called after the Eustaces.