Scottish Rulers: Somerled, the Isles and the 1290-92 Succession
Somerled and his descendants in the western Isles, the Scottish succession dispute of 1290-92, and the later Lord of the Isles title.
Last updated October 2026
Contents5
Somerled and his descendants held power in the western Isles. Their records concern regional authority, while the Scottish crown's dispute of 1290-92 concerns competing claims to the throne.
This guide brings those records together and explains the later Lord of the Isles title. For the later crowns held by the same person, see the Stuart monarchs and the broader English and British royal history.
The Scottish crown
The crown's succession could become disputed. The Royal Family's account of the competitors explains the crisis after the reported death of Margaret, the Maid of Norway, in 1290. John Balliol received the award of the crown in 1292 after the claims were considered.
That account sets out why the claim of Robert Bruce was also argued: descent through an elder family branch and closeness in generations were different ways of judging inheritance. A family tree does not always supply one uncontested answer.
| Scottish crown event | Date in the cited account | What it means |
|---|---|---|
| Report of Margaret's death | 1290 | A succession crisis, not a long settled reign |
| Award of the crown to John Balliol | 1292 | Resolution of the competing claims in that process |
| Dispute over Bruce's claim | Part of the same proceedings | A different argument about inheritance |
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Somerled and the western Isles
Somerled's power belongs to the history of the western seaboard. Historic Environment Scotland's Iona history identifies him as an ancestor of the MacDonald Lords of the Isles and as Iona's patron in the mid-twelfth century. It connects him with St Oran's Chapel and later names his son Ranald in the abbey's history.
The authority's Dunstaffnage account records Somerled's death in 1164 and describes his eldest son Dubhgall as the next King of the Isles. It connects Dubhgall's son Duncan with the building of the castle before 1240, while making the attribution appropriately cautious.
Lords, kings and territorial control
Those accounts use royal and lordly titles in specific settings. Neither turns Somerled into a King of Scots. The same family could hold influence over islands and mainland lands while the Scottish and Norwegian crowns competed for control.
Dunstaffnage's history dates the King of Scots' control of the region to 1266. It later describes Robert Bruce's siege around 1308. Those dates concern control of a region and a castle, not the start and end of one uninterrupted island reign.
| Isles record | Evidence to retain |
|---|---|
| Somerled | Patronage at Iona; death in 1164 |
| Dubhgall | Named successor in the Dunstaffnage account |
| Ranald | Separate role in Iona's Benedictine abbey history |
| Duncan MacDougall | Probable castle builder before 1240 |
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The title and the later crown
The Royal Family's account of titles and heraldry distinguishes the Lord of the Isles title from other titles borne by a royal heir. Its history is about a particular office and claim, not a universal rank that sits neatly above every Scottish noble.
The title's presence among a royal heir's Scottish titles is distinct from Somerled's territorial power in the twelfth century. The heritage accounts describe his family's authority through named people, islands and castles; the Royal Family's account describes the title borne within the crown's institutions.
Reading beyond a succession chart
Use the ruler index to compare this material with other regional lists. For later British royal biography and the crowns' shared history, the royal family book selection is a separate reading route. Its scope is broader and later than a medieval Isles genealogy, so the heritage records remain the sources for the entries above.