Clan O'Dwyer


O'Dwyer, also known as Dwyer, 'Dyer' is one of Ireland's oldest Gaelic noble or aristocratic houses, based most prominently in what is today County Tipperary. The name means "dark coloured", in reference to their progenitor Dubhuir mac Spealáin's hair colour.

Ancestry

A claimed ancestor of the O'Dwyer clan was King Milesius of Spain, who according to legend conquered Ireland for the Gaels.
Documented paternal ancestors of the clan are of the Laigin, specifically, Cairbre Cluichechair, who was the son of Cú Corb, King of Leinster. Cairbre Cluichechair moved into Munster, founding the Dál Cairbre Aradh at an early stage.
However, according to historian C. Thomas Cairney, the O'Dwyers were chiefs of the Dal Cairbre Arad tribe who in turn came from the Erainn who were the second wave of Celts to settle in Ireland between about 500 and 100 BC, which was before the Laigin who were the third wave of Celts to settle in Ireland.

History

There are accounts of the O'Dwyer family participating in the Battle of Clontarf and Irish clan warfare.
The O'Dwyers eventually emerged as Lords of Kilnamanagh in the High to Late Middle Ages, but they are not referenced by name as significant in the Annals of the Four Masters until the 15th century.
Along with the O'Carroll of Éile, the O'Kennedy of Ormond and the Mulryan of Owney, the O'Dwyers of Kilnamanagh were one of a cluster of regional Gaelic clan powers in the High Middle Ages in the area of what would one day become County Tipperary who held out against Anglicisation with the arrival of the Lordship of Ireland. They interplayed with newer Norman arrivals on their borders who became significant powers, especially the Butler Earls of Ormond. Clan members Philip O'Dwyer and Anthony O'Dwyer captured the Rock of Cashel in 1641 during the Irish Rebellion of 1641. Subsequently, following the Cromwellian War in Ireland, the clan were punished and dispossessed of much of their land under the Act for the Settlement of Ireland 1652. Some were removed to County Clare, while others chose exile as Wild Geese on the European Continent. A significant number of O'Dwyer men found service in armies of Bourbon France, the Habsburg monarchy and even Romanov Russia.
Throughout history, the O'Dwyers would prove themselves capable generals and soldiers, and would participate in many armed conflicts:
NationWar ConflictDates:
IrelandBattle of Clontarf
Irish tribal warfare
War of the Three Kingdoms
Cromwell's Conquest of Ireland
Nine Years' War
Eleven Years' War
Willamette War in Ireland
Irish Rebellion of 1798		7th century AD to 18th century AD
United KingdomAnglo-Mysore Wars
French Revolutionary Wars
Napoleonic Wars
- Battle of Waterloo
Venezuelan War of Independence
Shimonoseki campaign
Crimean War
Zulu War
Anglo-Nepalese War
New Zealand Wars
First Anglo-Sikh War
Second Anglo-Burmese War
WW1
WW2		18th century AD to 20th century AD
FranceWar of Spanish Succession
American Revolutionary War
- Siege of Savannah
Napoleonic Wars
Franco-Prussian War		18th century AD to 19th century AD
USAAmerican Revolutionary War
American Civil War
- Army of the Potomac		18th century AD to 20th century AD
SpainEighty Years' War18th century AD
AustriaWar of Spanish Succession
- Battle of Luzzara
- Iberian Campaign
Austro-Turkish War 		18th century AD
RussiaRusso-Turkish War of 1768–74
Russo-Swedish War of 1788–1790		18th century AD

Castles

In Kilnamanagh, the O'Dwyer built several castles, as part of their attempt to defend their lands. Today all of these castles are in ruin, but some of their remains can be seen in County Tipperary. Most were destroyed during the 17th century and all of them were confiscated during the times of Oliver Cromwell. These include:
  • Ballysheeda Castle
  • Ballagh Castle
  • Clonyharp Castle
  • Drumbane Castle
  • Dundrum Castle,
  • Graigone Castle
  • Killenure Castle
  • Milltown Castle.
  • Moyaliffe Castle

Naming conventions

MaleDaughterWife 'Wife '
Ó DubhuirNí DhubhuirBean Uí DhubhuirUí Dhubhuir
Ó DubhuidhirNí DhubhuidhirBean Uí DhubhuidhirUí Dhubhuidhir

List of people

The name has variants including Dwyer. People with the name O'Dwyer include: