The Holy Roman EmpireAn astonishing, essential book on what was for ten centuries Europe's largest state the Holy Roman Empire A great, sprawling, ancient and unique entity, the Holy Roman Empire, from its founding by Charlemagne to its destruction by Napoleon a millennium later, formed the heart of Europe. It was a great engine for inventions and ideas, it was the origin of many modern European states, from Germany to the Czech Republic, its relations with Italy, France