The game of kings - Dorothy Dunnett

In this first book in the legendary Lymond Chronicles, Francis Crawford of Lymond, traitor, murderer, nobleman, returns to Scotland to redeem his reputation and save his home.

It is 1547 and 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. He is Francis Crawford of Lymond, a scapegrace nobleman of crooked felicities and murderous talents, posessed of a scholar's erudition and a tongue as wicked as a rapier. In The Game of Kings, this extraordinary antihero returns to the country that has outlawed him to redeem his reputations even at the risk of his life.