Old Leighlin

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Old Leighlin Cathedral

Old Leighlin /ˈlɔːxlɪn/ (Irish: Seanleithghlinn) is a small town in County Carlow, Ireland, 3.5 km west of Leighlinbridge. The site was at one time one of the foremost monastic houses in Leinster, with 1500 monks in residence. It was the location for a church synod in AD 630, which decided that the Irish church should follow Roman as opposed to Celtic dating conventions for determining the date of Easter.[1]

St Laserian's Cathedral was the cathedral of the diocese of Leighlin, now merged with neighbouring dioceses in the Church of Ireland. It is named after Molaise of Leighlin and was built on the site of an old monastic church founded here in 632 AD. It is one of the smallest Irish medieval cathedrals.[1] Nearby are a Holy well, which is still venerated, and small granite undecorated wheeled High cross with edge mouldings.[2]

Old Leighlin gave its name to a constituency in the pre-1800 Parliament of Ireland, it was a Bishop’s borough where the local Church of Ireland Bishop selected the Member of Parliament.


  1. ^ a b "Old Leighlin. Carlow". rootsweb.ancestry.com. ancestry.com. Retrieved 8 September 2014.
  2. ^ http://webgis.archaeology.ie/historicenvironment/ Historic environment viewer. SMR:CW011-016004- (well); CW011-016003- (cross). Retrieved August 5, 2018

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Coordinates: 52°44′11″N 7°1′10″W / 52.73639°N 7.01944°W / 52.73639; -7.01944