Regiment of Hibernia

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Uniform and colonel’s flag of the Regiment of Hibernia in Spanish service, mid-eighteenth century

The Regimento Hibernia ("Regiment of Hibernia"), was one of the Spanish army´s foreign regiments (Infantería de línea extranjera). Known by many in Spain as "O'Neill's Regiment", it was formed in 1709 from Irishmen who fled their own country in the wake of the Flight of the Earls and the penal laws and who became known as the Wild Geese a name which has become synonymous in modern times for Irish mercenaries and soldiers throughout the world.

Although the Wild Geese are more associated with the French Army and are indeed seen as the precursors of the French Foreign Legion the regiment[1] of Hibernia was one of many Irish regiments to serve in the Spanish army. The Wild Geese began fighting for Spain during the Eighty Years' War. The first Irish units in the service of Spain were formed in 1587 as the Tercio Irlanda ("Irish Brigade"), formed from defectors from the English army.

Due to the number of wars Spain was involved in during the early 18th century the country could not provide itself with enough soldiers for its own campaigns. This was also exacerbated by the severe loss of manpower as a result of a plague epidemic. Diplomatic approaches were made to a number of countries with requests for the recruitment of mercenaries to fight for Spain. Swiss, Germans, Italians and Walloons were recruited but the Spanish were particularly keen to engage Irishmen because of their reputation as soldiers. The Confederation of Kilkenny established licences for the recruitment of Irishmen to fight for the King of Spain.

The Irish regiments in Spanish service were disbanded in 1818 at the request of their British allies.


The Irish regiments, as foreign troops, wore the same red jacket as the Swiss and Neapolitan troops in their service - except they had green facings. This was worn with an athwart (worn sideways) black bicorne hat for all ranks; enlisted men wore a red plume and officers wore a red cockade and fringed epaulets. Their regimental symbol was the Arms of Ireland - a gold harp on a sky blue field.

In 1806 the uniform was changed to a sky-blue coatee with yellow lining, turnbacks and trim worn with a white vest and breeches, perhaps to differentiate them from their red-coated British allies. Regimento Irlanda (the "Irish Regiment" cr.1698) had a yellow collar and lapels and gold buttons, Regimento Hibernia (the "Hibernian Regiment" cr.1709) had a sky blue collar, yellow lapels and silver buttons, and Regimento Ultonia (the "Ulster Regiment" cr.1709) had a yellow collar, sky blue lapels and silver buttons.

Private of the Hibernia Regiment, in typical red jacket and green facings, late 18th century(Bueno Correa 1986)

Campaigns and battles[edit]

One remarkable facet of so many Irishmen fighting for opposing nations in Europe was that they occasionally faced each other as enemies on foreign battlefields. The Hibernia Regiment found itself in this position at the siege of Badajoz, in 1811, when they faced the Irish Legion under the command of the French.



External links[edit]


  • Irish Brigades Abroad, Stephen McGarry
  • The Spanish Monarchy and Irish Mercenaries.- The Wild Geese in Spain 1618-68. (R.A. Stradling)
  • The Irish Brigades in the Service of France, J.C. O'Callaghan.
  • The Wild Geese, M. Hennessy
  • The March of O'Sullivan Beare, L.J. Emerson.
  • The O' Neills in Spain, Spanish Knights of Irish Origin, Destruction by Peace, Micheline Kerney Walsh. The Irish Sword, Vol 4-11
  • The Wild Geese, Mark G. McLaughlin.
  • Wild Geese in Spanish Flanders, 1582–1700, B. Jennings.
  • Spain under the Habsburgs, John Lynch
  • The Flight of the Earls, John McCavitt