The fact that Rǫgnvaldr agreed to the marriage could indicate that a stake in the kingship was the price of Alan's assistance against Óláfr. From the perspective of the Scottish Crown, it is conceivable that Alan's ambitions in the Isles were encouraged by the prospect of Alan's son becoming a dependable client-king on Mann, and the potential to further extend and strengthen Scottish royal authority along the western seaboard, bringing stability to the war-torn region. Alexander probably also encouraged Fearchar's alliance with Óláfr. As such, the Scottish Crown appears to have escalated the discord in the Isles by playing off both sides in the fraternal struggle. Whilst Alan's interest apparently consisted of Mann and the southern Hebrides, territories that would have complemented his lordships within the North Channel-Firth of Clyde region, Fearchar's own interest may have centred around Skye and Lewis, where his descendants gained dominance later in the thirteenth-century.