Neither. Finley's are an official sept of Clan Farquharson per a number of reputable sourses. The clan originally called themselves Clan Findláech in honor of Fionnlaigh MacRuardi, Macbeth’s father. After Macbeth's death, King Malcolm III of Scotland declared Macbeth's surviving kindred to be outlaws. They were forced to change their names and to hide themselves among loyal supporters. Over 180 years later, Finley descendents came back to the fore, banding together publically again to form the core of Clan Farquharson. Clan Farquharson later became affiliated with the Chattan Federation for mutual protection but has always been, first and foremost, its own entity.