Malahide Castle, set on 250 acres of park land in the pretty seaside town of Malahide,w as both a fortress and a private home for nearly 800 years and is an interesting mix of architectural styles.
The Talbot family lived here from 1185 to 1973, when the last Talbot died. The house is furnished with beautiful period furniture together with an extensive collection of Irish portrait paintings, mainly from the National Gallery. The history of the Talbot family is recorded in the Great Hall, where portraits of generations of the family tell their own story of Ireland's stormy history. Many additions and alterations have been made to this romantic and beautiful structure, but the contours of the surrounding parklands have changed little in 800 years, retaining a sense of the past.
A major feature of Malahide Castle Demesne is the beautiful Talbot Botanic Gardens. The gardens, as they exist today, were largely created by Lord Milo Talbot between 1948 and 1973.
https://www.visitdublin.com/see-do/details/malahide-castle-and-gardens