Earl Uhtred said:The 'Highland Line' represents a social divide. That's my only defence for it in 1066. That and we don't know exactly what was being spoken in NE Scotland before the C12.
Prior to the marriage between Malcolm Canmore and Margaret Atheling all of Scotland was gaelic. We know this because the Lothian Clergy all spoke gaelic around about the rule of Malcolm Canmore, but Margaret spoke to them in Saxon.
Earl Uhtred said:'Galloway' is another CK vexation. That area should be called Nithsdale or something instead.
Although in 1066 Galloway is not a title, through out much of the CK period the Lords of Galloway were important figures in Scotland's politics. There is also theories going around, which are very speculative, that Fergus, the first Lord of Galooway we can prove exists, was infact the Grandson of Maldred, the cousin of Malcolm Canmore. Although that is a very speculative punt. Nithsdale never became an important title till the rise of the Black Douglas Family after Bannockburn.