County Kildare History

County Kildare in the province of Leinster, Ireland, was first defined as a diocese in 1111, shired in 1297 and assumed its present borders in 1836. Its location in the Liffey basin on the main routes from Dublin to the south and west meant it was a valuable possession and important theatre of events throughout Irish history.

An inland town on Ptolemy's map of Ireland of 100 AD may be Rheban on the Barrow river, the only written records from pre-Christian County Kildare. The estimated date for the abandonment of the sacred pre-Christian site of Knockaulin/ Dún Áilinne is 400 AD, the traditional date for foundation of the monastery at Cill Dara is 490 AD, the date for the death of first Bishop Conlaed ua hEimri, (St Conleth) is 520 AD and the estimated date for the death of foundress St Brigid (Irish: Naomh Bríd), is 524 AD (also dated 521 and 526). Her death has been celebrated traditionally on 1 February, which is also the pre-Christian festival of Imbolc. The rise of Kildare sept the Uí Dúnlainge after 633AD helped promote the cult of St Brigid, as she was related to that dynasty, giving her status as one of three 'national saints' of Ireland and increase the status of the two monasteries where they had influence, Kildare and Glendalough.

The first hagiography of St Brigid, Vita Brigitae, already containing familiar wonder tales such as the story of how her cloak expanded to cover the area now known as the Curragh of Kildare, was compiled in 650AD by Cogitosus for Faolán mac Colmáin the first of the Uí Dúnlainge kings of Leinster. In 799 a reliquary in gold and silver was created for relics of Conlaed (St Conleth). Further south the death of Diarmait (St Diarmuid), anchorite scholar and founder of Castledermot created a second major monastic site in the county. There were also about 50 local saints associated with pattern days and wells in the county. Kildare is home to five surviving round towers at Kildare town, Castledermot, Old Kilcullen, Taghadoe near Maynooth and Oughter Ard near Ardclough.

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