Site of Castle, Oldcastle, Co. Tipperary South
In the gently rolling pastures near Oldcastle in South Tipperary, where a small stream meanders to the northwest, lies a piece of Irish history that has quite literally vanished from sight.
Site of Castle, Oldcastle, Co. Tipperary South
This unassuming patch of slightly elevated ground once held an O’Dwyer castle, a structure that belonged to one of the region’s most prominent Gaelic families. The O’Dwyers were historically significant landowners in Tipperary, their fortifications dotting the landscape as symbols of their territorial control and political influence.
By 1654, the castle had already fallen into considerable disrepair; contemporary records describe it rather poetically as ‘the stumpe of a castle’, suggesting that only the most basic remnants of the structure remained standing. The decline was likely accelerated by the tumultuous events of the Cromwellian conquest, which saw many Irish castles deliberately destroyed or abandoned. When antiquarian Charles Seymour surveyed the area in 1840, he found that even these last vestiges had disappeared completely, leaving no visible trace of what had once stood there.
Today, visitors to this quiet corner of South Tipperary would find it impossible to detect any evidence of the castle at ground level. The site serves as a poignant reminder of how thoroughly time and circumstance can erase physical monuments to the past. Whilst nothing remains to mark the spot where the O’Dwyer castle once commanded the landscape, the historical records compiled by researchers like Jean Farrelly ensure that its existence, however ephemeral, remains part of the documented heritage of County Tipperary.





