During his father Duncan's chiefship, Ferquhard had taken part in Alexander MacDonald of Lochalsh's insurrection of 1491, the Raid on Ross.
The acting chief, William, proceeded to take revenge: firstly by raiding the lands of Rannoch and Appin which belonged to the MacGregors and MacDonalds of Glencoe.
[1] During Dubh's Rebellion of 1503–04, the Mackintoshes and Clan Chattan supported the royal side, opposing the rebels.
According to the Mackintosh's own 17th century Kinrara manuscript he was received by 1,800 men of the Clan Chattan in Inverness who had been mustered there by his cousin, William.
They had one son, Donald,[2] who died in infancy and four daughters who married respectively to Guthrie of that Ilk, Strachan of Glenkindy, Alaster mac Alan, the Captain of Clan Macdonald of Clanranald, and Ian Shaw of Rothimurcus.