Why Scotland’s King Once Attempted to Install His Brother as the High King of Ireland
In short: In 1315, Edward Bruce launched a three-year military campaign to seize control of Ireland. Backed by Scottish forces and local Gaelic leaders, he aimed to open a second front against England. The ambitious project sought to establish a new royal dynasty, but it ultimately collapsed in a final, fatal battle.
The campaign began as an extension of the First War of Scottish Independence. Following his success at Bannockburn, Robert the Bruce sought to weaken England by depriving it of Irish tax revenues and resources. Simultaneously, Donall Ó Néill, the King of Tyrone, requested Scottish military aid to resist Anglo-Norman incursions. The brothers agreed to the alliance on the condition that Edward would be crowned High King of Ireland, a title that had remained vacant since the late 12th century.
Edward landed at Larne in May 1315 with over 5,000 men. He quickly secured the support of northern Gaelic lords and achieved several military victories, including the defeat of Roger Mortimer at the Battle of Kells in 1315. However, the campaign struggled to maintain long-term territorial control. The army relied heavily on pillaging for supplies, which alienated the local population, while the Great Famine of 1315–1317 and widespread disease significantly weakened their ranks.
The political vision behind the invasion was articulated in the 1317 Remonstrance, a document sent to Pope John XXII that justified the campaign as a necessary intervention against English misrule. Historians suggest this text influenced the later Declaration of Arbroath. Despite these efforts, the movement failed to gain lasting legitimacy. The conflict concluded in 1318 when Edward was defeated and killed at the Battle of Faughart, effectively ending the Scottish attempt to reshape the political landscape of medieval Ireland.
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Sources
- Summary by Intellect · source: Bruce campaign in Ireland
- Also: Wikidata — Bruce campaign in Ireland · CC0
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