“…after Unction and Penance, in his own fair castle at Rahan.”
On the Point
Rahan Castle — known locally as McSwyne’s Castle and, from its later owners, as Castle Murray — stands on the exposed headland of St. John’s Point near Dunkineely, County Donegal, looking south across Donegal Bay under the bulk of Slieve League. It was the principal seat of Mac Suibhne Bóghaineach, the MacSweeneys of Banagh: the third of the three Donegal houses, and the one that has weathered least well.
It is the southern counterpart to Doe Castle, and, like Doe, a house raised by warriors who had already lost their first one. Both descend from Castle Sween on Loch Sween in Argyll — the Scottish cradle the name was born in. Sween is the origin; Doe and Rahan are what two branches of the same displaced kindred built on the far side of the water.
Timeline Snapshot
c. 1450
Tower house raised on St. John’s Point by the Banagh branch — a coastal stronghold and the chief’s residence in one.
14 December 1524
Niall Mór Mac Suibhne dies at Rahan — the one death here the Four Masters thought worth recording in full.
1601 to c. 1610
Kinsale, submission, and Plantation. The lands pass out of Gaelic hands to Scottish grantees.
After 1641
Decades of litigation over the estate leave no resident owner. The castle is abandoned and left to the weather.
Key Moments
The MacSweeneys came from Argyll as gallóglaigh and became hereditary constables and standard-bearers to the O’Donnells of Tír Chonaill. Banagh — Tír Bhoghaine — was the southwestern of their three lordships. These are the episodes that define its seat.
The Office
Sixty axes and a relic
Banagh owed the O’Donnell a rising-out of sixty axes — and one man to carry the mail shirt and the stone of Colum Cille. They bore the saint’s relic to war. Gallowglass page →
1524
Niall Mór dies in his own house
A warrior remembered above all for hospitality, and one of the few Gaelic lords the annals allow a quiet death — at home, shriven, in the castle he held.
1535
A killing on the threshold
The annals record a Banagh killing at the castle door, brother against brother — succession inside a gallowglass house settled the way the house knew how.
c. 1602
The last Gaelic chief
Donnchadh Mac Swyne — Donnchadh Dubh in some accounts — submitted after Kinsale and took back a fraction of what his family had held. The same year broke Doe →
Niall Mór Mac Suibhne
If Castle Sween has Suibhne the Red and Doe has Maolmhuire an Bhata Bhuí, Rahan has Niall Mór Mac Suibhne — lord of Tír Bhoghaine, renowned as a fighter and, more unusually for the annals, as a host. The Annals of the Four Masters record him dying after Unction and Penance in his own fair castle at Rahan on 14 December 1524.
His father Eoghan had founded the Franciscan house at Ballysaggart, and Niall was buried there. His carved grave slab was later moved to St. Mary’s Church in Killybegs, where it can still be seen — and it is stylistically close kin to the MacSweeney slab kept in the restored keep at Doe. Two branches, two coasts, one workshop tradition and one idea of how a chief should be commemorated.
Architecture and the Sea
Rahan was sited the way its builders thought: for the water. A narrow promontory with an intertidal harbour below it gave the Banagh chiefs a boat landing they controlled and a view down the whole southern approach to Donegal Bay.
The Headland
A narrow finger of rock into Donegal Bay — sea on the long sides, one guarded approach across open field from the landward end.
Tower & Bawn
A fifteenth-century tower house within a walled bawn — the standard Gaelic lordly form, built here in its coastal variant.
Boat Landing
An intertidal harbour below the rock: shelter for galleys, a hand on the coastal trade, and a patrol station against anything entering the bay.
Where Doe answered its headland with a rock-cut moat and a drawbridge, Rahan answered its own with height and exposure. It is the same military thinking as Castle Sween three centuries on and one sea over — put the house where the boats are, and let the water do the first half of the work.
Plantation, Litigation, Ruin
Rahan did not fall to a siege. It fell to paperwork — and then to the Atlantic.
c. 1610
Confiscated under the Plantation of Ulster and granted to Scottish settlers — first William Stewart, then John Murray, later 1st Earl of Annandale.
Mid-1600s
James Murray died without heirs; the estate went to his cousin Robert Creighton, who took the Murray name with it.
After 1641
The Rebellion threw ownership into chaos. Creightons, Crown, and Scottish claimants litigated for decades; with no resident owner, nothing was maintained.
1844
Stone from the ruins was carted off for the new parish church at Killybegs — the castle dispersed into the buildings around it.
Doe was seized too, but Doe was wanted: it passed to Sir John Davies, was fought over, occupied, restored, and finally protected. Rahan was won and then argued over, and an argued-over house is an empty one. That is the difference between the two ruins today — not the quality of the stone, but whether anyone had a reason to keep the roof on.
Folklore and Afterlife
Visit Today
What remains
A high, battered wall section with a narrow window frame facing the sea, and scattered masonry across the headland. Fragmentary — go for the site, not the structure.
Approach
Off the St. John’s Point road beyond Dunkineely, then a walk across open fields. No facilities, no signage, working farmland — leave gates as you find them.
Coastal erosion is a live threat here in a way it is not at Doe. What stands on the point is going, slowly, into Donegal Bay; the wall with the sea-window is the part most exposed and the part most worth seeing.
Explore Further
- Castle Sween — the Scottish cradle the three houses came from →
- Doe Castle — the northern house, best preserved of the three →
- The Gallowglass — Gallóglaigh →
- MacSweeney Clan Atlas →
- Leabhar Chlainne Suibhne →
Map & Landscape
Suibhne's Flight 637
- Dál nAraidhe Landscape
The east Ulster kingdom the tale gives Suibhne mac Colmáin. It is here he goes out naked to drive off Rónán Finn and throws the saint’s psalter into the lake — the offence the curse answers. The kingdom’s extent is approximate; the king lists know no Suibhne at that date. - Mag Rath · Mag Roth · Moira, Co. Down Battle
The Annals of Ulster record the battle under U637.1 — attestation, not story. In Buile Suibhne it is the hinge: three great shouts go up, the king’s fingers loosen on his weapons, his body grows light, and he rises out of the battle like a bird. Moira is a strong traditional association, not a settled site. - Glen Bolcain Landscape
The glen where Ireland’s madmen gathered, and the geilt’s one poor home — watercress, brooklime, and the great tree poems. The tale places it in the north; tradition looks to north Antrim. Marked here near Rasharkin as tradition suggests, not as fact. - Britain Landscape
Where Suibhne meets his mirror: Alladhán, a wild man of the Britons, cursed after his own battle. They keep each other’s misery a year and part when Alladhán goes to his foretold drowning. The tale says only "Britain"; scholars trace the geilt motif to the Brittonic north, so the marker sits on that coast. - Tech Moling · St Mullins, Co. Carlow Sanctuary
Moling’s monastery on the Barrow. The saint does not cure him and does not cage him — he receives him, lets him wander, and orders his story and his poems written down. Suibhne dies against the church door-post, reconciled. This site is that order obeyed once more.
The Crossing c. 1200 – 1314
- Castle Sween · Caisteal Suibhne, Knapdale Seat
The cradle. Suibhne of Argyll raised the oldest datable stone castle on the Scottish mainland here, and the clan took his name. Around 1310 John MacSween brought a fleet against his own ancestral castle to win it back, and failed — a raid remembered in the Book of the Dean of Lismore. After that there was no Scotland to return to. - Iona Sanctuary
Where the clan’s Scottish fathers were made and buried, before Kilmacrenan in Donegal took over the office. The family carried the shape of its inauguration across the water with everything else. - Fanad · Fánaid, Co. Donegal Landscape
The landfall. By about 1314 Murchadh Mear — Murchadh the Mad, the name’s shadow already showing — had planted the line in Fanad as professional soldiers. Exile becomes foundation: from him, the three lordships, the castles, the book, and every Sweeney since.
The Three Houses 1314 – 1600
- Rathmullan · Mac Suibhne Fánad Seat
The senior seat, on Lough Swilly. One hundred and twenty mailed gallowglasses owed to the O’Donnell; the priory endowed; Máire Ní Mháille’s commission of the family’s great manuscript. The last inaugurated lord of Fanad was still living in 1619. - Kilmacrenan Sanctuary
Where MacSweeney chiefs were inaugurated — the same ground on which the O’Donnells themselves were made. Hired swords do not get an inauguration site. Lords do. - Doe Castle · Caisleán na dTuath Seat
Sweeney Doe — Mac Suibhne na dTuath — on Sheephaven Bay: foster-fathers of Red Hugh O’Donnell, one hundred and twenty axes owed, the ornamented grave slab carved here in the high tide of the name. The last of them marched to Kinsale. - Dunfanaghy Landscape
The coastal landscape that frames Doe Castle’s story, and keeps its folklore. - Creeslough Landscape
The village at the head of the bay, grounding the castle in a place people still live. - Tory Island · Toraigh Sanctuary
An island of hermits off the Donegal coast, where the scribe Ciothruadh Mág Fhionngoill wrote the Leabhar Chlainne Suibhne for Máire Ní Mháille — a warrior household’s book of piety, in Irish. The family library begins here. - Rahan Castle · Mac Suibhne Bóghaineach Seat
Sweeney Banagh’s seat near Dunkineely, under Slieve League. Sixty axes owed — and one man to carry the mail shirt and the stone of Colum Cille. They bore the saint’s relic to war. - Slieve League · Sliabh Liag Landscape
The sea cliffs that wall the Banagh lordship, and mark the end of the Donegal coast the name held.
The Armada Year 1588
- Loughros Peninsula Wreck
La Duquesa Santa Ana driven ashore on the Loughros shore. Donegal commemoration remembers the survivors moving overland under the protection of "McSweeny na Doe" — a broader pattern in which MacSweeney authority is remembered as active, not merely passive, in the survivors’ story. - Doe Castle · Caisleán na dTuath Seat
Heritage Ireland’s own record for the castle states it plainly: the MacSweeney chief Eoghan Óg II gave shelter here to survivors of the 1588 fleet. Which ship’s men, how many, and what became of them, the record does not say. - Killybegs Harbour
The galleass La Girona anchored here damaged and crammed with survivors off other wrecks. MacSweeney Bannagh aided the Spanish and supported the repairs. She sailed for Scotland on 25 October. - Lacada Point · Port na Spaniagh, Co. Antrim Wreck
The night after leaving Killybegs, La Girona broke on the rocks below the Causeway headland. Of roughly thirteen hundred aboard, a handful reached shore. The repair at Killybegs bought them one day.
The Scattering 1598 – 1820
- The Yellow Ford Battle
O’Neill and O’Donnell’s great victory on the Blackwater — the old trade’s last full triumph, three hundred and forty years after the first Hebridean axes came to Ireland in a princess’s dowry. - Kinsale Battle
The chiefs of the name marched the length of Ireland in winter and shared in the defeat that ended the world that employed them. After Kinsale there is no Gaelic order left to need a hereditary axe. - Rathmullan · Mac Suibhne Fánad Seat
1607: from this shore the Earls sailed out of Ireland. The senior seat of the name watched the Gaelic world end from its own beach. - Cong Landscape
Mícheál Mac Suibhne was born at Funshinaugh near the ruined abbey of Cong — of a branch that tradition holds came west from Ulster generations before, refugees of the Cromwellian settlement. - Cleggan Landscape
The Atlantic edge of Connemara the Bard of the West is most associated with. A blacksmith at the forge in Irish-speaking Iar-Chonnacht, making songs a whole district kept by heart. The axe becomes the song. - Clifden Landscape
He is believed to have died at Fahy, near Clifden, around 1820. His burial place is unknown. The Bard of the West left no monument but his songs — the only monument a bard was ever meant to leave.
Further Reading
- Annals of the Four Masters, s.a. 1524 — the death of Niall Mór Mac Suibhne at Rahan
- Paul Walsh, ed., Leabhar Chlainne Suibhne (1920) — the Banagh branch in the clan’s own account of its branching-out
- Go Visit Donegal: Coastal Castles — Rahan among the Donegal coastal castles
- Plantation of Ulster grant records — the Stewart, Murray, and Creighton succession in Banagh