This impressive Tudor Gothic mansion, the ancestral home of the McMorrough Kavanghs, High Kings of Leinster, was modelled in 1810–20 around the earlier shells of an 18th-century house and a 15th-century castle. The highlight of the interior is the ornate stucco plasterwork by Michael Stapleton, whose work can also be seen in Trinity College and Powerscourt House in Dublin. Visits are by guided tour only, which must be booked online in advance.