 When James I of Scotland returned to his kingdom from captivity in England he set about subduing those who threatened his royal authority including his own kinsmen, the Albany Stewarts, but also Alexander of Islay, Earl of Ross (Alexander MacDonald, Lord of the Isles) as well as some of the most powerful men in the northern territories such as Angus Mackay of Strathnaver - a leader of 4000 fighting men, Kenneth Mor, John Ross, William Leslie and Angus de Moray who were each leaders of 2000 men.They had all been imprisoned after arriving in good faith to meet James at Inverness Castle in 1428.James executed some of his prisoners but Alexander of Islay, Earl of Ross was set free after a few months.