Kilkenny Castle is the property of the Marquess of Ormonde and family seat of the Butlers who have had connections with Ireland for over eight centuries and with the city of Kilkenny for over 600 years.

An interview with Lord Dunboyne, head of the junior branch of the Butler family, on his family background, their connection with the River Boyne and the advantages for Ireland of having Irish peers in the House of Lords. Although born in London, Lord Dunboyne is very proud of his Irish connections and considers himself to be very much an Irishman. 

My family have been in Ireland for eight centuries or so. I myself was in Ireland as a child and we've been nurtured by Ireland...It's fundamentally emotional.
 

A Newsbeat report broadcast on 31 August 1965.