| Clan Name: | Clan MacDonald of Dunnyveg |
| Image Badge: | File:Crestdunnyveg.jpg |
| Chiefs Crest: | A arm bent at the elbow, with a cuffed sleeve, holding the cross, crosslet fitchee Gules |
| Chiefs Motto: | Latin: Toujours Prêt (Always Prepared) |
| Region: | Highlands and Islands |
| District: | Islay, Kintyre and Antrim |
| Image Arms: | File:Macdonald-of-dunnyveg.png |
| Historic Seat: | Dunyvaig Castle[1] |
| Branches: | Clan MacDonnell of Antrim Clan MacDonald of Largie |
| Allied Clans: | Clan Cameron Clan MacNeill |
| Rival Clans: | Clan MacLean Clan Campbell of Cawdor |
Clan MacDonald of Dunnyveg, also known as Clan Donald South, Clan Iain Mor, Clan MacDonald of Islay and Kintyre,[2] MacDonalds of the Glens (Antrim) and sometimes referred to as MacDonnells, is a Scottish clan and a branch of Clan Donald. The founder of the MacDonalds of Dunnyveg is Eòin Mòr Tànaiste Mac Dhòmhnaill, a son of Iain Mic Dhòmhnaill (John of Islay, Lord of the Isles) and Margaret Stewart of Scotland, daughter of King Robert II.[3] Members of the clan actually pronounced and spelled their name M'Connall due to the Gaelic pronunciation of the name Mac Domhnuill thus giving rise to the surname McConnell and its variants.[4] While historically recognised as a clan by the Court of the Lord Lyon, it is now an armigerous clan as it no longer has a chief. The last chief was Sir James MacDonald, 9th of the Clan MacDonald of Dunnyveg or Clan Donald South, who died in London in 1626.
The founder of Clan Donald of Dunnyveg and the Glens was Eòin Mòr Tànaiste Mac Dhòmhnaill who was the second son of John MacDonald also known as Good John of Islay, Lord of the Isles, 6th chief of Clan Donald and 1st Lord of the Isles through his marriage to Margaret Stewart. Eòin Mòr Tànaiste Mac Dhòmhnaill married Margaret Bissett of the Glens of Antrim. From his marriage he claimed, but did not possess, this territory in Ireland, along with those he already possessed in Islay and Kintyre in Scotland. He and his descendants became known as Lords of Dunnyvaig and the Glens, although they did not possess the latter until the 16th century. Their seat in Dunnyvaig was on the Island of Islay and in the Glens they were seated at Dunluce Castle on the north Antrim coast.
The Lords of the Isles and the Council of the Isles met on Islay (pronounced Eye’ la) at Finlaggan Gaelic for white hollow. Finlaggan loch has two small islands. Upon the larger was the residence of the Lord of the Isles. The smaller of the isles was called Eilean nan Comhairle, meaning ‘council island’. The Council of the Isles met on the smaller island. The Lordship of the Isles has not governed anything like later feudal Lords governed. It was more like the Celtic kingdoms of Ireland and the Dalriadic Kingdom from which it evolved. Local chiefs elected by their clan made up the Council of the Isles. They acted as judges to settle disputes in their own clan. They were the chiefs of Clan Donald branches Dunnyveg, Clanranald, Keppoch, and Ardnamurchan and the clans of ancient Dalriada including MacKinnon, MacMillan, Magee, MacNicoll, Maceachern, MacKay, and MacGillivray. Several clan chiefs of the MacLeods and MacLeans were on the Council.
Eòin Mòr Tànaiste was assassinated by James Campbell in 1427. His son Donald Balloch MacDonald the 2nd chief led the clan when they fought and won at the first Battle of Inverlochy (1431). This was in support of their cousin Alexander of Islay, Earl of Ross and chief of Clan Donald, 3rd Lord of the Isles.
The third Chief, Sir John Mor with his heir John Cathanach and three grandsons were apprehended through the treachery of MacIain of Ardnamurchan and were executed in Edinburgh for treason. However, MacIain of Ardnamurchan, who had also betrayed Alexander MacDonald of Lochalsh, was himself killed in 1518 by those whom he had betrayed.
On the death of James MacDonald, 6th of Dunnyveg and Antrim, the Antrim Glens were seized by one of his younger brothers called Somerled or Sorley Boy MacDonnell known also as Sorley Buy. In 1565 under Sorley Boy MacDonnell the Clan Donald of Antrim and Dunnyveg fought the Battle of Glentasie against Shane O'Neill in Ireland. Sorley Buy swore allegiance to James IV of Scotland and his fourth son Ranald was made Randal MacDonnell, 1st Earl of Antrim by Queen Elizabeth.
Much quarrelling took place between Angus MacDonald, 8th of Dunnyveg and his eldest son, Sir James MacDonald, 9th of Dunnyveg this was largely due to the intrigues of the Clan Campbell. Sir James MacDonald led the clan who fought and won at the Battle of Gruinart Strand on the Isle of Islay in 1598 against an invasion force of the Clan MacLean who were led by Sir Lachlan Mor Maclean of Duart Castle who was killed.[5]
Further intrigue by the Clan Campbell brought the downfall of the Clan Donald of Dunnyveg and by 1620 Sir James MacDonald had lost control of Islay and Kintyre. However, during the Civil War the lands were back in the hands of the MacDonalds briefly when they were supporters of James Graham, 1st Marquess of Montrose. A notable member of the Clan MacDonald of Dunnyveg is Alasdair Mac Colla who is famed for his victories with the Royalist James Graham, 1st Marquess of Montrose during Scottish Civil War of the 1640s.[6]
The last chief, Sir James MacDonald, 9th of the Clan MacDonald of Dunnyveg or Clan Donald South died in London in 1626.
A petition was lodged on 18 May 2012 with The Court of Lord Lyon by John Gerald McDonnell[7] seeking confirmation of the Arms of the Clan Donald South, Clan Ian Mor and a grant of Supporters and Standard befitting the rank of degree of Chief of Ian Mor. The petition was dismissed on 10 November 2014 by Lord Lyon, Dr. Joseph J. Morrow.