 Pari gbolohun ti o tẹle: William Mackenzie, 5th Earl of Seaforth ti ku ni 1740, ati 2nd titular Marquess of Seaforth ni Jacobite Peerage, ti a tun mọ ni Uilleam Dubh, tabi Black William, jẹ peer ilu Scotland ati olori ti Clan Mackenzie. O kọ ẹkọ ni Ilu Faranse ati gbe bi Roman Catholic, o ni ipa fun ipa rẹ ni 1715 Jacobite Rising ati tun darapọ mọ : 1719 n gòkè lọ. 