Gulliver's Travels author, Jonathan Swift, attended Kilkenny College in the late 17th century, and a building at the college was named after him in 2007. Swift's fellow students included playwright William Congreve and the philosopher George Berkeley – after whom California’s Berkeley College is named.
The architect who built the White House in Washington, D.C., James Hoban, was raised on the Earl of Desart’s estate in Cuffesgrange, near Callan in Co. Kilkenny.
Nowadays, Kilkenny Castle is effectively three-sided. One of the four walls - and one of the great round drum towers - has disappeared over time.
Where did it go? Well, the Eastern wall and the North-Eastern tower were blown up during the 1650 Cromwellian siege of Ireland.
"To understand Kilkenny's unique character one should retire from the busy streets to the lovely Castle Park and, standing within the shadow of the ancient pile, contemplate the great jumble of roof-tops, old and young, which tumble down to the quiet-flowing river beneath. Here dove-grey spires and battlemented towers proclaim a city old in Christian living and wise in human experience. One can feel the heartbeat of an ancient civilised community."
Katherine M Lanigan, Gerald Tyler, 'Kilkenny, Its Architecture & History', Appletree Press 1977
The "Kilkenny Cats" nickname stems from the feral felines that once inhabited the Dunmore caves in the north of the county.
The Butler family handed Kilkenny Castle over to the people of Kilkenny in 1967 – for £50!