St Flannan’s Cathedral dates back to the later period of the 12th century and has been in continuous use since then. The Cathedral is home to some stunning examples of architecture from this period including a Romanesque stone carved doorway. There also some very interesting artefacts such as an Ogham Stone, a High Cross and a 13th century stone carved font.
The perfectly stone roofed St Flannan’s Oratory is located in the grounds of the Cathedral. It is one of a small number of Irish churches with a stone roof and is possibly the oldest surviving church in Ireland built in the Romanesque style. The entrance is through a doorway in the west gable which is relatively plain except for the moulding and the capitals of the columns, one of which is carved with two animals sharing a single head, and the other bearing foliate decoration.
The Oratory and Cathedral and named after St Flannan who became the first bishop of Killaloe in 639 A.D
Both the Cathedral and Oratory are popular attractions in Killaloe and make for an interesting visit.