The Long Gallery, measuring almost 80 by 23 feet, with its heavy ceiling compartments and frieze dates from the 1720s. Originally there were four doors in the room and the walls were panelled in stucco similar to the entrance Hall. In 1776 the plaster panels and swags were removed but traces of them were found behind the painted canvas panels when they were taken down for cleaning during recent conservation work.

In the mid 1770s the room was redecorated in the Pompeian manner by two English artists, Charles Reuben Riley (c.1752-1798) and Thomas Ryder (1746-1810). Tom and Louisa's portraits are at either end of the room over the chimney-pieces and the end piers are decorated with cyphers of the initals of their families: The portrait of Lady Louisa is after Reynolds (the original is in the Fogg Art Museum, Harvard) and that of Tom after Anton Raphael Mengs (the original is in the National Gallery of Ireland). The subjects of the wall paintings were mostly taken from engraving in d'Hancarville's Antiquites Etrusques, Greques, et Romaines (1766-67) and de Montfaucon's L'antiquite expliquee et representee en figures (1719). The busts of the poets and philosophers are placed on gilded brackets designed by Chambers. In the central niche stands a seventeenth-century statue of Diana. Above is a lunette of Aurora, the godess of the dawn, derived from a ceiling decoration by Guido Reni, the seventeenth century Bolognese painter.

The three glass chandeliers were made for the room in Venice and the four large sheets of mirrored glass came from France. In the 1770s the Long Gallery was used as a living room and was filled with exquisite furniture. Originally in the room, there were a pair of side tables attributed to John Linnell, with marble tops attributed to Bossi, a pair of commodes by Pierre Langlois, that were purchased in London for Lady Louisa by Lady Caroline Fox and a pair of bookcases at either end of the room.

Lady Caroline Dawson wrote of the Long Gallery in 1778: We then went to the house, which is the largest I ever was in, and reckoned the finest in this kingdom. 11 has been done up entirely by Lady Louisa, and with a very good taste. But what struck me most was a gallery, I daresay 150 feet long, furnished in the most delightjiJl manner with fine glasses, books, musical instruments, billiard table -in short, everything you can think of us in that room,. and though so large, is so well fitted, that it is the warmest, most comfortable-looking place I ever saw. They tell me they live in it quite in the winter, for the servants can bring dinner or supper at one end without anybody hearing it at the other; in short I never saw anything so delightful...

In 1989 major conservation work was carried out on the Long Gallery. The wall paintings that had been flaking for many years were conserved. The original eighteenth-century gilding has been cleaned and the chandeliers restored. The project was funded by the American Ireland Fund, the Irish Georgian Society and by private donations.

All text copyright of Dr. Paul Caffrey. Copies of the guidebook are available from Dr. Caffrey at caffreyp@ncad.ie