Complex sentence: The Down Survey for Kilbride and Blessington parishes, completed "c".1655, does not record any buildings in the parish of Kilbride, but Threecastles is described as containing a garrison, presumably installed to secure the area following the Cromwellian Conquest of Ireland.
Split into simpler sentences: The Down Survey for Kilbride and Blessington parishes, completed "c".1655, does not depict or describe any buildings in the parish of Kilbride. However Threecastles is described as containing a garrison, presumably installed to secure the area in the aftermath of the Cromwellian Conquest of Ireland.