Christ Church Cathedral is Dublin's oldest building, a leading visitor attraction and a place of pilgrimage for almost 1,000 years. Renowned for its beauty, architecture and exquisite floor tiles, it is home to the famous 12th Century crypt, one of the oldest and largest in Britain and Ireland. Perfectly located in the heart of Medieval Dublin, it was founded in 1030 by Sitriuc, King of the Dublin Norsemen and was incorporated into the Irish Church in 1152 and eventually led by the famous Archbishop and patron saint of Dublin, Laurence O’Toole.