Attila, Emperor of the Hunnic Empire and thus most commonly known as Attila the Hun, is an idiosyncratic figure who has become more myth than man, not least because much of his life is shrouded in mystery. Perhaps the most famous "barbarian" in history, Attila was the lord of a vast empire spanning two continents, but he is best remembered for what he did not conquer. Though he seemingly had Rome at his mercy in 452, he ultimately decided not to sack...