Castlemartin House - Credit: Wikimedia Commons
Castlemartin is the name of a historic house and estate, and the townland in which they sit, on the banks of the River Liffey in Kilcullen, County Kildare, Ireland. Formerly a key estate of the Eustace family, it was for many years the home of media magnate Tony O'Reilly,New York City: The New York Times, "Tony O'Reilly Astride Two Worlds; In Ireland, Publisher and Prospector", Steve Lohr, 8 May 1988. and his wife, Chryss Goulandris, but was bought in 2015 by John Malone, an Irish American. The estate includes major stud farm and cattle breeding operations, a restored medieval church and an icehouse. Read more on Wikipedia
Source: en.wikipedia.org