Gorteens Castle is a ruined castle situated on private land in south-east County Kilkenny near the village of Slieverue close to Waterford city. It is in the historic parish of Rathpatrick in the south-east of the Barony of Ida. Along with the ruins of Rathpatrick church and another church, it is one of several ruins in Rathpatrick Parish.
The ruin consists of a gatehouse that may have belonged to a larger structure. Gorteens comes from the Irish na goirtinsdhe which means little gorts or gardens. Archaeological excavations near the castle in 1993 indicated that the site was used between the 16th and 18th centuries, with further excavations in 2003 identifying additional castle walls and outbuildings.
The castle was originally the property of the FitzGerald family, an Anglo-Norman aristocratic dynasty in medieval Ireland. Gorteens was included in the Down Survey of Ireland in 1656 as being in the Baronys of Ida, Igrim or Ibercon and in the Parish of Rathpatricke. John FitzGerald, a Catholic, is recorded as being the last FitzGerald holder of Gorteens. FitzGerald forfeited it during the Cromwellian conquest of Ireland, and was initially transplanted to Connaught in December 1653, before being assigned lands in Turlough and in Carra, County Mayo by 1677.
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- Heather A. King, Skidoo, Ballyboughal, Co. Dublin (1993). Gorteens. Sites and Monuments Record No.: SMR 047:01 & 02. Licence number: 93E0013. Record for County: Kilkenny (Report).
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Under the Cromwellian regime, John Fitzgerald, the head of the family, forfeited [...] Gurteens [..and..] on his transplantation, was assigned [...] other lands in the Barony of Carra, Co. Mayo [...] by Royal letters of May 30th, 1677
- Fintan Walsh, Irish Archaeological Consultancy Ltd (2003). Gorteens Castle. Sites and Monuments Record No.: SMR 47:1 Licence number: 03E0255. Record for County: Kilkenny (Report).
- O'Kelly, Owen (1985). The Place-Names of County Kilkenny. Boethius Press. ISBN 0-9501687-8-5.
- "The Down Survey of Ireland". Trinity College Dublin. 2013. Retrieved 15 December 2016.
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