 As many as 600 members of the clan were forced to flee after the failure of the revolt, exiled to Kintyre and the Isle of Gigha, where they adopted the new name of MacBhreatneaich of M'Vretny ("son of the Briton") .James the Fat's rebellion was quickly defeated.His father and brothers were found guilty of treason by a jury of knights and peers, and executed after a trial.