MacDonnachie
MacDonnachie is a surname of Scottish origin. It is derived from the Gaelic given name Donnchadh, meaning "brown-haired warrior". The surname is patronymic, indicating "son of Donnchadh". While the exact origins are debated, it is most commonly associated with the western Highlands of Scotland, particularly the areas around Argyll and the Isles.
The MacDonnachie clan, though not one of the largest or most prominent historical clans, has historical ties