Lixnaw, Co Kerry
Mark Bence-Jones. A Guide to Irish Country Houses (originally published as Burke’s Guide to Country Houses volume 1 Ireland by Burke’s Peerage Ltd. 1978); Revised edition 1988 Constable and Company Ltd, London.
p. 189. “(Petty-Fitzmaurice, Landsowne, M/PB) The once-magnificent seat of the Fitzmaurices, earls of Kerry, an old castle much enlarged C18 with fine gardens. By the beginning of C19, Castle was decayed, by 1837, in ruins. Now, only a few shapeless walls remain.”

Listed in Vanishing Country Houses of Ireland by The Knight of Glin, David J. Griffin and Nicholas K. Robinson, published by The Irish Architectural Archive and The Irish Georgian Society, 1988.
p. 82. “An old castle, enlarged in the 18C. The former seat of the Fitzmaurices, Earls of Kerry. In ruins by 1837, little remains.”
https://theirishaesthete.com/2023/02/10/sic-transit-gloria-mundi-2/