The Game of Kings (The Lymond Chronicles #1)
Dorothy Dunnett

The first book in the legendary Lymond Chronicles , Game of Kings takes place in 1547. Scotland has been humiliated by an English invasion and is threatened by machinations elsewhere beyond its borders, but it is still free. Paradoxically, her freedom may depend on a man who stands accused of treason: Francis Crawford of Lymond.
From the Trade Paperback edition.