Downhill Castle was built by the eccentric Frederick Hervey, 4th Earl of Bristol and Lord Bishop of Derry. The building of this massive structure began in 1772 which continued with the rear courtyards until the early 1790s.
Downhill Demesne, the Mussenden Temple, the grounds encompassing the temple, and its manor house (Downhill Castle) is now a National Trust property and is open to the public all year, from dawn to dusk. I would highly recommend a stop if ever in the area; the grounds and what it holds are beyond beautiful.
In the feudal system, a demesne was all the land which was retained by a lord of the manor for his own use and occupation or support, under his own management, as distinguished from land enfeoffed by him to others as sub-tenants.
The Demesne also includes a dovecote, walled gardens, a belvedere, or summer house, built for the Earl-Bishop’s daughter and a mausoleum dedicated to his brother George, 3rd Earl of Bristol, Lord Lieutenant of Ireland. Travel along with us as we get closer to the remarkable structures that the property contains.