Explore the Map
Dún Ailinne
53.1150° N, -6.7750° E
About
Dún Ailinne (pronounced [ˌd̪ˠuːnˠ ˈalʲən̠ʲə]; sometimes anglicized Dun Aulin) is an ancient ceremonial site on the hill of Cnoc Ailinne (Knockaulin) in County Kildare, Ireland. It is southwest of Kilcullen, near the R418 road to Athy. It is a large circular enclosure covering most of the hilltop; about 13 hectares. While there is no longer anything visible on the ground surface, archeological investigations show that there were once circular timber structures (or rings of upright timbers) inside the enclosure during the Irish Iron Age (ca 400 BCE - 400 CE). According to Irish mythology, Dún Ailinne was one of the great royal sites of early Gaelic Ireland and was believed in the Early Medieval period to have been where the Kings of Leinster were inaugurated. These documents were written long after the site was in common use, however, and the site's relationship to Early Medieval kings remains unclear. It is similar to the other royal sites of Tara (Kings of Meath), Navan Fort (Kings of Ulster) and Rathcroghan (Kings of Connacht). The site is on private property and is not open to public access. The hill is 183 metres (600 ft) above sea level and so visible from many places in the surrounding area. The best view of the site is from the Old Kilcullen churchyard in Old Kilcullen (where there is also a round tower), which is free and open to the public. Dún Ailinne should not be confused with the Hill of Allen (Cnoc Alúine), which is to the northwest.
Historical Timeline
Journey through time and discover key events in this site's history
Iron Age use
c. 400 BCE–400 CE
Abandonment
6th century
Excavations
1968–1975
Book publication
2007
Interpretative site opened
2008
Geophysical survey
2009
Archaeological Features
Unique architectural and cultural elements found at this historical site
Defensive Structures
Religious and Ritual Structures
Environmental and Natural Features
Food Production and Processing Features
Frequently Asked Questions
Plan Your Visit
Tours, travel arrangements, and practical information
More Sites in Ireland
Caherconnell Stone Fort
Medieval stone ringfort in the Burren, Ireland
Altar Wedge Tomb
Wedge tomb in County Cork, Ireland
Annagh Church
Medieval church in County Kerry, Ireland
Labbamolaga Church
Medieval church and Bronze Age megaliths, County Cork, Ireland
Alice and Gwendoline Cave
Limestone cave in County Clare, Ireland with Upper Palaeolithic finds
Burriscarra Abbey
Medieval Carmelite priory ruins, County Mayo (13th–15th c.)