Dublin’s Oldest Building
Christ Church Cathedral was founded in 1030 by Sitriuc Silkenbeard, the Viking king of Dublin, making it the oldest building in continuous use in the city. The cathedral stands on the site of the original Viking settlement and contains a medieval crypt (the oldest structure in Dublin, dating from the 1170s), the tomb of the Norman warlord Strongbow, medieval floor tiles, and the mummified remains of a cat and rat found trapped in an organ pipe (known locally as “Tom and Jerry”). The adjacent Dublinia museum — connected to the cathedral by a bridge — covers the Viking and medieval periods.
Frequently Asked Questions
Is Christ Church Cathedral free?
No. There is an admission charge for tourist visitors. Church services are free to attend.
What is the oldest part of the cathedral?
The medieval crypt, dating from the 1170s Norman reconstruction. It is the oldest standing structure in Dublin and contains artefacts, monuments, and the famous mummified cat and rat.
What is Dublinia?
A museum of Viking and medieval Dublin, housed in the former Synod Hall adjacent to Christ Church Cathedral and connected by a bridge. It covers Dublin’s Norse and Norman history through reconstructions and interactive exhibits, and is particularly suitable for children.