On 14 September 1607, Hugh O’Neill, Earl of Tyrone, Rory O’Donnell, Earl of Tyrconnell, Cúchonnacht Maguire and a large party of relatives and followers left the north-west of Ireland from near Rathmullan on Lough Swilly. Their departure became known as the Flight of the Earls — one of the most consequential moments in the history of Gaelic Ulster.
The familiar label can make the event sound sudden and simple. It was neither. The leaders were leaving a political world already transformed by the Nine Years’ War, the defeat at Kinsale and growing pressure from the English administration. Whether they expected permanent exile or hoped to return with foreign support remains debated.
Who left Ireland in September 1607?
The best-known figures were Hugh O’Neill and Rory O’Donnell, but the party was much larger. Contemporary and later sources describe roughly ninety-nine people leaving, including family members, attendants and other Ulster figures. Cúchonnacht Maguire of Fermanagh was central to arranging the ship.
The group included people of different ages and roles. This was not simply a handful of military leaders slipping away. Families were travelling together, uncertain about what came next.
Why did the earls leave?
After the Nine Years’ War ended in 1603, O’Neill and O’Donnell retained titles and lands under the English crown, but the settlement was unstable. Disputes over authority, land and loyalty continued. Both men faced increasing political pressure and feared accusations that could destroy their remaining position.
Sources disagree over how far the departure had been planned as a permanent exile. The significance is clearer than the intention. Once the leading Gaelic lords were gone, the English crown moved against their estates, helping clear the way for the Plantation of Ulster.
A contemporary account lets us follow the journey
One of the most valuable things about the Flight of the Earls is that a participant left a detailed narrative. Tadhg Ó Cianáin travelled with the party and recorded their route from Ireland through continental Europe.
The University College Cork CELT edition preserves that account. It tells us about letters, meetings, delays, storms and the practical business of travelling — details that make the people involved feel less like symbols and more like a group trying to navigate a dangerous political situation.
From Lough Swilly to continental Europe
The party originally hoped to reach Spain, but the voyage was disrupted by bad weather. They eventually landed in France and travelled onward through the Low Countries before many reached Rome.
The journey created a community of Irish exiles on the continent. O’Neill and O’Donnell never returned to Ireland. Rory O’Donnell died in 1608; Hugh O’Neill died in Rome in 1616.
What changed in Ulster after the departure?
The Flight of the Earls did not by itself create the Plantation of Ulster, but it removed some of the most powerful remaining Gaelic political figures from the province. Their lands were declared forfeit, and large-scale plantation followed under James VI and I.
The consequences were profound. Landholding, settlement, language, politics and religion were all reshaped over the following decades. The event therefore sits at the junction between the end of one Gaelic political order and the creation of a new Ulster society.
The family names inside the story
The Flight is inseparable from several major Irish surnames. Our O’Neill history explains the wider Tír Eoghain dynasty; our O’Donnell history follows the rulers of Tyrconnell; and our Maguire history explores the Fermanagh dynasty that also stood at the centre of the 1607 departure.
Those connections are historical, not genealogical shortcuts. Sharing one of these surnames does not by itself prove descent from the earls or ruling families.
Why the Flight of the Earls still matters
The event matters because it connects political change with something intensely human: leaving home without knowing whether you will ever return. It also helps explain why early seventeenth-century Ulster changed so quickly after 1607.
More than four centuries later, Rathmullan remains associated with that September departure. The shoreline is remembered not because everyone agrees on the earls’ motives, but because their leaving became one of the clearest dividing lines in the history of Gaelic Ulster.