For the first time, the private three-floor residence on the grounds of the K Club Hotel, Spa, and Country Club in Kildare, Ireland—40 minutes outside of Dublin—is available for private reservations. Set amid 550 acres of land, the Straffan House mansion was modeled after a 19th-century French château and was previously used as a private residence for the K Club’s owner, Michael Smurfit. The 10 bedrooms, each of which has a bathroom en suite, are available for a total of $26,000 per night in the summer and $16…