"The succession of the clan chief in the Celtic tradition was decided by the system of "tanistry", an ancient law that brought members of the ruling elite together to choose the next heir. This system ensured that a strong leader was always chosen, but inevitably led to conflict and fracturing of some clans. When Malcolm III became King in 1058 he adopted the English Feudal system and also changed the language of court from Gaelic to English. To some extent this was the start of the intensification of the struggle between Lowland Scotland and Highland Scotland that was to reach its zenith in Culloden."