Picts
a Celtic people of northeastern Scotland. Little is known of their origin, history, or fate. An amusing discussion of the first question is carried on by Jonathan Oldbuck and Sir Arthur Wardour in the sixth chapter of Scott's Antiquary. The earthhouses of northern Scotland are supposed to be their ancient habitation. Their territory extended from the Firth of Forth to the Pentland Firth. Tradition and the records of monks have preserved a list of sovereigns. They were converted to Christianity about 563. As to their disappearance from history they were doubtless absorbed by the Scots. Without doubt the modern Highlanders are in part the descendants of the Picts. See Scotland
Volume IV · Aiton’s Encyclopedia