The McCarthy family — in Irish, Mac Cárthaigh — were one of the mightiest dynasties in Munster, descended from the ancient Eóganacht kings and holding the title of Kings of Desmond across the medieval centuries. Their castle-building legacy across Cork and Kerry is among the most extensive of any Gaelic dynasty in Ireland, encompassing great fortresses, coastal strongholds, and hundreds of tower houses that dotted every corner of their territory. Blarney Castle is the most famous of their buildings, but it is only one structure in a much larger portfolio of McCarthy castle heritage that stretched from the hills of Cork to the peninsulas of Kerry.
What Castles Did the McCarthy Clan Own?
The McCarthy dynasty split into several distinct branches across the medieval period, each with its own castle portfolio. The McCarthy Mór — the senior branch — were based in Kerry, their principal stronghold at Pallis Castle near Killarney. The McCarthy Reagh of Carbery held castles across west Cork, including Kilbrittain, Timoleague, and Carrigadrohid. The MacCarthy lords of Muskerry — the branch who built Blarney — controlled mid-Cork, with Blarney as their chief seat. Together these branches represent a castle heritage that covered the whole of southwest Munster. The full history of the McCarthy family is explored at the McCarthy surname heritage page.
What Was the McCarthy Clan's Connection to Blarney Castle?
Blarney Castle was built around 1446 by Cormac Laidir MacCarthy, Lord of Muskerry, and it served as the principal seat of the Muskerry branch of the dynasty until their dispossession in the seventeenth century. The great tower at Blarney — one of the largest and best-preserved tower keeps in Ireland — represented the McCarthy lords of Muskerry at the height of their power, a statement in stone of their wealth, status, and military capability. The castle's famous Stone of Eloquence, set into the battlements near the top of the keep, is the aspect of Blarney most widely known today, but the castle's true significance lies in its role as the seat of a major Gaelic lordship in Munster across two centuries. The Sullivan family, long associated with the McCarthy lords of Munster, are explored at the Sullivan surname heritage page.
What Was Kilbrittain Castle and Why Was It Important?
Kilbrittain Castle in west Cork was the principal stronghold of the McCarthy Reagh — the Carbery branch of the McCarthy dynasty — and one of the most important McCarthy fortresses outside Blarney. The castle stood above Courtmacsherry Bay on the Cork coast, controlling a strategic position on the southwest approaches to Munster. The McCarthy Reagh were at various periods among the most powerful lords in Cork, their territory covering much of the Carbery region and their connections to the O'Driscoll lords of the coast and the O'Mahony family of the Mizen Peninsula making them a central figure in the complex political world of Gaelic west Cork. Kilbrittain is now largely ruined, but its position above the bay gives a vivid impression of the strategic thinking behind its location.
What Was Carrigadrohid Castle?
Carrigadrohid Castle stands on a small island in the River Lee west of Cork city, its tower rising from the water in a position that controlled the river crossing at this point. Associated with the McCarthy lords of Muskerry, it represents the type of strategically placed river castle that Gaelic lords used to control movement through their territory. The castle was the site of a notable incident during the Cromwellian wars, when the Bishop of Ross was hanged from its walls in 1650. The castle is now a ruin but remains an atmospheric presence on the Lee valley landscape.
How Did the McCarthy Castles Fare During the Plantation Era?
The McCarthy dynasty suffered severely during the Tudor conquest and the subsequent plantation era. The Desmond Rebellions of the 1560s and 1570s — mounted by the FitzGerald earls of Desmond with McCarthy support — ended in catastrophic defeat and the Munster Plantation of the 1580s, which confiscated the lands of those who had rebelled. The Cromwellian settlement of the 1650s completed the dispossession of the remaining McCarthy lords, including the Muskerry branch who had managed to avoid some of the earlier confiscations. Blarney Castle passed out of McCarthy hands permanently after the Cromwellian wars, the dynasty that had built it losing the seat their ancestors had held for over two centuries. The Donovan family, a Gaelic sept of southwest Cork whose territory overlapped with the McCarthy world, are explored at the Donovan surname heritage page.
What McCarthy Castle Heritage Survives Today?
Of the McCarthy castle portfolio, Blarney Castle is the most complete and most visited survivor, its great tower substantially intact and open to the public year-round. Kilbrittain, Carrigadrohid, and many of the lesser McCarthy tower houses survive as ruins in various states of preservation, accessible in some cases on public land or visible from public roads. The landscape of Cork and Kerry — particularly the Mizen Peninsula, the Beara Peninsula, and the hills of mid-Cork — is dotted with tower house ruins that represent the McCarthy world at its fullest extent.
If you are proud of your McCarthy heritage or your roots in Munster, Celtic Ancestry Gifts carries heritage gifts for the McCarthy name and hundreds of other Irish surnames — woven blankets, mugs, and home decor for families celebrating their Cork and Kerry roots. Use the search bar on our homepage to find your family name.
