In 1284 when his son the prince died, Alexander III called Ailin mac Ruaidhri, the ruler of Garmoran, (along with all the Earls and Barons of Scotland) to make them accept Margaret, Maid of Norway as the heir.
[2][3] In 1343, King David II issued a charter to Raghnall Mac Ruaidhrí, granting him the islands of Uist, Barra, Eigg and Rhum (Ywest ... Barra ... Egghe ... Romme) and eight pennylands of Garmoran (Garw Morwarne), which were defined as 'Moidart (Mudeworth), Morar (Mordhowor), Arisaig (Aresaig) and Knoydart (Cundeworth) with their pertinents'.
[4] In October 1346, Raghnall Mac Ruaidhrí was assassinated at Elcho Nunnery near Perth as the result of a quarrel with Uilleam III, Earl of Ross.
Raghnall was the "last chieftain of the MacRuaris"[5] and Amie mac Ruari, who married John of Islay, Lord of the Isles, was his sole heir.
[6] John of Islay later divorced her although the "unvarying tradition" of the Gàidhealtachd recorded in the late 19th century was that Amie had given her husband no grounds for doing so and lived on her own on her estates until her death.