 Following the Jacobite defeat a Government ship sailed up Loch Fyne and shelled Castle Lachlan , forcing the chief 's family to abandon their residence , and in Edinburgh the Maclachlan colours were burned on the orders of the Duke of Cumberland . It had been assumed that the chiefs lands had been forfeited for his support of the Young Pretender and the Jacobite cause , but it was ruled that he had been killed before he could be attainted . The chief of the Campbells , the Archibald Campbell , 3rd Duke of Argyll , who although helped crush the Jacobite forces , aided Donald , son of the deceased Maclachlan chief , and helped saved his lands . On 12 February 1747 Donald Maclachlan of that Ilk received a charter for his lands " at the intercession of the Duke of Argyll " , though it was considerably unpopular decision at the time , and Maclachlan 's estates were " surveyed but afterwards found not to be forfeited " . 
