E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
consists of a stone so enclosed as to form a chair.
It was probably the stone on which the kings of Ireland were inaugurated on the hill of Tara. It was removed by Fergus, son of Eric, to Argyleshire, and thence by King Kenneth (in the ninth century) to Scone, where it was enclosed in a wooden chair. Edward I. transferred it to Westminster.
The monkish legend says that it was the very stone which formed Jacobs pillow.
The tradition is, Wherever this stone
is found, there will reign some of the Scotch race of kings. (See SCONE.)