Murchadh Mac Suibhne (died 1267) was a leading member of Clann Suibhne. He was a grandson of the family's eponymous ancestor Suibhne mac Duinn Shléibhe, and a nephew of the family's mid-thirteenth-century representative, Dubhghall mac Suibhne.
During the latter's career, the Scottish Crown sought to extend royal authority into Argyll and the Isles. In the course of this westward drive, Clann Suibhne fell prey to the Stewarts, one of Scotland's most powerful and families. Charter evidence dating to the early 1260s reveals that Dubhghall resigned the Clann Suibhne lordship into the hands of Walter Stewart, Earl of Menteith. Whether this transfer was the result of a military operation against Clann Suibhne is unknown.
The fact that some members of Clann Suibhne were unwilling to subject themselves to Stewart domination is evinced by the record of Murchadh supporting the cause of Hákon Hákonarson, King of Norway, who led a retaliatory campaign to reassert Norwegian authority in 1263. Murchadh played a prominent part in this campaign. He was amongst the Islesmen commanded a detachment of Hákon's fleet into Loch Lomond, where they devastated the Lennox district. Upon the close of the campaign, Murchadh was rewarded the lordship of Arran for his services.
Unfortunately for Murchadh and his family, Scottish power remained unbroken after Hákon withdrew from the region. Scottish forces are reported to have led retaliatory campaigns into the Isles the following year. As such, Murchadh appears to have had little choice but to submit to the Scots. A son of his is certainly recorded to have been kept as a royal hostage.
Although Clann Suibhne's lordship in Argyll appears to have ended by the 1260s, the family was evidently closely associated with the Uí Domhnaill kindred in Ireland. Later generations of Clann Suibhne chieftains certainly commanded gallowglass warriors on behalf of the Uí Domhnaill and other Irish families. Murchadh himself may have met his end pursuing such a career, as he is reported to have died a prisoner of Walter de Burgh, Earl of Ulster in 1267, having been taken prisoner in Connacht.
Ancestry.
Murchadh was a son of Maol Mhuire mac Suibhne. The latter's father was Suibhne mac Duinn Shléibhe, eponymous ancestor of Clann Suibhne.
According to the sixteenth-century "Leabhar Clainne Suibhne", Murchadh bore the epithet ' ("the mad"). If this source is to be believed, his father bore the epithet ' ("the purse"), and was married to Bean Mhídhe, daughter of Toirdhealbhach Ó Conchobhair.
There is reason to suspect that these claims are nevertheless erroneous. The earliest source to outline Clann Suibhne's descent is the fourteenth-century "Book of Ballymote", which appears to show that "Leabhar Clainne Suibhne" has omitted two generations, merging Murchadh and his father with a like-named son and grandson.
Various Irish annals, such as the fifteenth- to sixteenth-century "Annals of Connacht", record that a member of Clann Suibhne named Maol Mhuire was married to Bean Mhídhe, daughter of Toirdhealbhach, son of Ruaidhrí Ó Conchobhair, King of Connacht. The fact that this source specifically identifies Bean Mhídhe as "the wife" of her husband, in an annal entry outlining her death in 1269, suggests that her husband was still alive at the time. This in turn suggests that the annal entry refers to the wife of Murchadh's son; and that the epithets ' and ' are those of Murchadh's son and grandson.
Scottish encroachment in Argyll.
During the reign of Alexander II, King of Scotland, the Scots extended royal authority into Argyll and the Isles. In the early 1260s, about a decade after Alexander II's death, his son and royal successor, Alexander III, came of age and took steps to continue his father's westward expansion. As with the previous reign, it was the Stewart family, this time in the person of Walter Stewart, Earl of Menteith, who spearheaded the campaign. Evidence of this push is preserved by the record of Clann Suibhne possessions being granted away in the early 1260s.
For example, on 17 April 1261, Dubhghall, with the consent of his heir Eóin, granted the church of St Colmán Ela (Kilcalmonell) to Paisley Abbey, along with the chapel of St Columba near Skipness Castle. Furthermore, a charter of Walter Stewart to Paisley Abbey, dating to 19 January 1262, confirms Dubhghall's grant to the abbey, and states that Dubhghall had earlier granted the lands of Skipness to Walter Stewart himself. Dubhghall is listed as one of witnesses of the transaction. Other attested witnesses were Murchadh, and Murchadh's brother, Donn Sléibhe.
Dubhghall is elsewhere stated to have granted Walter Stewart his lands to be held as a "free barony" for two-thirds of a knight's service in the king's army. Additional evidence of the Stewarts' takeover of the Clann Suibhne heartland includes the record of grants of Walter Stewart of several Knapdale churches—those of St Abbán moccu Corbmaic (Keills Chapel), St Michael (Kilmichael of Inverlussa), and St Mary/St Máel Ruba (Kilmory Chapel)—to Kilwinning Abbey.
The circumstances surrounding of Dubhghall's contract with Walter Stewart are unclear. There are no other records regarding the allotment of Clann Suibhne lands during this period, and it is not known if the Stewarts or their allies had already established themselves in Knapdale. The transactions involving Clann Suibhne reveal that the family was progressively deprived of its territories. Whether the charters are evidence of a military invasion is unknown. The creation of a Stewart lordship in the region may have been undertaken in the context of extending Scottish royal authority into Argyll and the Isles. From the perspective of both the Stewarts and the Scottish Crown, Clann Suibhne seems to have represented a significant threat to regional stability. The removal or destruction of such families appears to represent part of a strategy to not only dislodge unpalatable kindreds (like Clann Suibhne), but forge new partnerships with more loyal kindreds, and extend the power of committed agents of the Scottish Crown (like the Stewarts).
Norwegian campaign.
Whilst Alexander II projected Scottish royal power into the south-west Highlands, Alexander III focused his effort upon the Isles. In 1262, the year after yet another failed attempt by the Scottish Crown to purchase the Isles from Hákon Hákonarson, King of Norway, the thirteenth-century "Hákonar saga Hákonarsonar" states that Hákon was alerted that his Scottish counterpart sought the subjugation of the Isles, and was informed of recent Scottish aggression in the region, including a particularly savage attack upon the inhabitants of Skye. Thus provoked, Hákon assembled an enormous fleet—described by the Icelandic annals as the largest force to have ever set sail from Norway—to reassert Norwegian sovereignty along the north and west coasts of Scotland. The fact that members of Clann Suibhne were unwilling to subject themselves to Stewart domination is evidenced by the record of Murchadh supporting the Norwegian cause.
In July 1263, the armada disembarked from Norway, and by mid August, Hákon reaffirmed his overlordship in Shetland and Orkney, forced the submission of Caithness, and arrived in the Hebrides. According to the saga, Hákon was met in the region by Magnús Óláfsson, King of Mann and the Isles and Dubhghall mac Ruaidhrí. As the fleet made its way southwards, Hákon sent a detachment of vessels under the command of Dubhghall and Magnús Óláfsson to harry Kintyre whilst Hákon himself made landfall on Gigha.
It is evident that Magnús and Dubhghall were tasked with bringing Aonghus Mór Mac Domhnaill and Murchadh onto the king's side. The saga, and pieces of poetry embedded within it, glorifies the subsequent ravaging of Kintyre, suggesting that it was this rapaciousness that finally compelled Aonghus Mór and Murchadh to come into the king's peace. Certainly the saga reveals that these west-coast magnates duly submitted to Hákon, swearing oaths of allegiance, surrendering hostages into his keeping, and delivering the island of Islay into his control. The king is further said to have levied a tax of one thousand head of cattle upon the Kintyre headland, and a particular fortress—most likely Dunaverty Castle—is stated to have been surrendered to Hákon by an unidentified knight.
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 ;poem ;The flight-shy ring-users of the swayer of the din of spears pulled the boats along the broad beach-paths. The fearless war-men of honour devastated the islands in the widely inhabited lake with spear-winds. ;/poem ;
 — excerpt from "Hrafnsmál", by Sturla Þórðarson, extolling the devastation of the Lennox by a detachment of Islesmen including Murchadh himself.
In early September, the reinforced fleet of Norwegians and Islesmen entered the Firth of Clyde. Although "Hákonar saga Hákonarsonar" states that the Norwegian and Scottish envoys attempted to negotiate a peace between the realms, the Scottish king was unwilling to concede a claim to the islands of the Clyde: specifically Bute, Arran, and the Cumbraes. After peace talks broke down, the saga identifies Magnús Óláfsson, Dubhghall, Ailéan, Aonghus Mór, and Murchadh, as the commanders of a detachment of Islesmen and Norwegians who entered Loch Long, portaged across land into Loch Lomond, and ravaged the surrounding region of the Lennox. According various versions of the saga, this contingent consisted of either forty or sixty ships—a considerable portion of Hákon's fleet. There is reason to suspect that this strike is evidence that the Norwegians and Islesmen were directing their fury at the territories of the Stewarts. The contested islands of the Clyde were almost certainly possessions of the Stewarts at the time. Furthermore, by penetrating into the Earldom of Lennox, and possibly striking further east inland, Hákon's adherents would have been encroaching into the Earldom of Menteith. Military actions conducted by Ailéan are specifically acclaimed by the saga, which states that he took several hundred head of cattle, and caused much destruction throughout Scotland. This inland campaigning appears to be corroborated by Scottish exchequer records, as John Lamberton, Sheriff of Stirling is reported to have incurred expenses for the upkeep of "vigilant men" at Stirling Castle for the time when the Norwegian forces were in the area.
Meanwhile, at the beginning of October, Hákon's main force clashed with the Scots at Largs, and withdrew into the Hebrides. Once regrouped with the detachment of Islesmen and Norwegians, the saga records that Hákon rewarded his overseas supporters. Whilst Dubhghall and Ailéan were awarded the forfeited island territories of Eóghan Mac Dubhghaill, a certain Ruðri received Bute, and Murchadh was granted Arran.
Although the saga declares that the Norwegian campaign was an overwhelming triumph, it seems to have been an utter failure instead. Not only did Hákon fail to break Scottish power, but Alexander III seized the initiative the following year, and oversaw a series of invasions into the Isles and northern Scotland. Recognising this dramatic shift in royal authority, Magnús Óláfsson submitted to Alexander III within the year, and in so doing, symbolised the complete collapse of Norwegian sovereignty in the Isles. Almost three years after Hákon's abortive campaign, terms of peace were finally agreed upon between the Scottish and Norwegian administrations. Specifically, with the conclusion of the Treaty of Perth in 1266, Hákon's son and successor, Magnús Hákonarson, King of Norway, formally resigned all rights to Mann and the islands on the western coast of Scotland. The territorial dispute over Scotland's western maritime region was finally settled.
As a result of this evaporation of Norwegian sovereignty, there is reason to suspect that families like Clann Suibhne were increasingly venerable to retaliation at the hands of the Scottish Crown. The Scots' retaliatory campaign against the Islesmen was evidently commanded by Alexander Comyn, Earl of Buchan, Uilleam, Earl of Mar, and Alan Hostarius. According to the fourteenth-century "Gesta annalia II", and the fifteenth-century "Scotichronicon", it was these magnates who oversaw the Scots' ravaging of the islands. These sources are corroborated by the thirteenth-century "Magnúss saga lagabœtis", which states that Scottish forces invaded the Isles in the summer after Hákon's campaign, and forced the submission of Aonghus Mór and other adherents to the Norwegian cause. Evidence from the Scottish exchequer, concerning Uilleam's reception of monetary aid for commanding two hundred serjeants on behalf of the king in the Hebrides, also validates these accounts. Further evidence of a concerted campaign against Hákon's supporters is the record of Walter Stewart assembling a royal fleet at Ayr, and of Uilleam taking twenty head of cattle from Kintyre.
In the wake of the Norwegian withdrawal, and the violent extension of Scottish royal authority into the Isles, Aonghus Mór and Murchadh had no choice but to submit to the Scots, and were forced to hand over their sons for their good behaviour. As for