One in ten Scots men descended from Picts

[Dale Seago]

This is hardly surprising, but it's interesting:

http://www.scotsman.com/the-scotsman...icts-1-2855561

The "disappearance" of the Picts was a matter of political and cultural assimilation or absorption, not population displacement or extinction. There's plenty of evidence that this is also what happened with the British Celts when the Anglo-Saxons took over down south.