The O’Dwyer family claimed descent from Milesius of Spain who, according to legend, conquered Ireland for the Gaels (hence the term ‘Milesians’ to describe the Irish race). By the late Middle Ages, the O’Dwyers had settled in the Barony of Kilnamanagh, Co. Tipperary, where their primary base was Dundrum, some eight miles to the west of Cashel. In this area, they constructed a number of castles, not least one at Dundrum, later replaced by a house constructed in the 18th century for the Maude family. Not far away, in the 16th century the O’Dwyers built another large castle at Killenure, which remained an important base for them until the Confederate Wars and their aftermath. According to the Civil Survey of 1654, the site had until then been occupied by ‘Charles O’Dwyer of Cullynuer Irish Papist.’ As for the property, it was described as ‘one demolished castle irreparable and one thatched house.’ Like many other such families, in the course of the Cromwellian settlement, the O’Dwyers were dispossessed of their lands, which in this case subsequently passed into the ownership of a branch of the Coppingers, who have featured here before (see Holding Court « The Irish Aesthete). They must have been responsible for adding a small residence to the east of the castle, using this as a shooting lodge. However, in 1746, the Coppingers sold Killenure to William George Cooper. 

The first of Killenure’s new owners to arrive in Ireland was Austin Cooper, originally from Surrey where he inherited property, but having sold it for some £1.500 around 1661, he moved to this country and settled in County Wicklow where he became responsible for the gardens around the house at Blessington built by Michael Boyle, future Archbishop of Armagh. There Cooper was responsible for creating one of the finest baroque gardens in Ireland, its greenhouse was one of the first places in the country where fruit was grown out of season. He became renowned for his feats of strength, such as taking two men, one in each hand, slapping them together and throwing them on a dunghill. Seemingly, if he held onto a cart, the horse pulling it could not move. It was his great-grandson, William, who moved to Killenure, having been appointed Diocesan Registrar of Cashel by Archbishop Arthur Price. Cooper and his wife Jane Wayland would have 14 children, their eldest son Samuel acting as land agent for his neighbours, the Maudes of Dundrum, whose estate management was much admired by Arthur Young when he visited in 1776. One of Samuel Cooper’s younger brothers was Austin Cooper who despite a life working in the Irish Treasury Office in Dublin is today remembered as an ardent antiquarian who measured, described and drew historic monuments, predominantly castles and churches, throughout the country. All this material was donated by the family to the National Library of Ireland in 1993: one of his pictures shows Killenure Castle, as it then looked. 

As can be seen here, Killenure Castle is very much a building in two parts, with a large house built to one side of the old O’Dwyer property. As it exists now, the two-storey house is L-shaped, and dates from two periods, the original five-bay pedimented block c.1770 and what is now the entrance front of four bays added c.1800. Adjoining this to the west stand the substantial remains of the original building, which is a curious blend of an old-fashioned defensive castle and an Elizabethan manor house, with a gable-fronted facade, mullioned windows and tall chimney stacks. Another distinctive feature is that it has a circular defensive tower at each of the four corners. One of these towers has later, larger window openings with brick surrounds, indicating this section was in use relatively recently but otherwise the castle seems little altered since first constructed, although nothing of substance remains inside. The Coopers remained at Killenure until 1963 when the estate was sold and the family moved to England. Happily,after a period when it appears the future of the property was in doubt, almost 20 years ago, it was bought by a family and has remained well cared for ever since.

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