Tulliallan (Gaelic tulach-aluinn, 'Beautiful knoll') was an estate in Perthshire, Scotland, near to Kincardine, and a parish. The Blackadder lairds of Tulliallan, a branch of the Blackadder border clan, wielded considerable power in the 15th and 16th centuries. The modern Tulliallan Castle is relatively recent, built in 1812-1820 and now the home of the Scottish Police College and (from 2013) the headquarters of the Police Service of Scotland.
Read more about Tulliallan: Parish, Old Castle, History, Later Years