From Norman Davies, the acclaimed author of "Europe: A History", comes the magical history of Europe's lost realms - selected as a Book of the Year by the "Sunday Times", "Daily Telegraph", "New Statesman", "Independent", "Guardian" and "Financial Times". Europe's history is littered with kingdoms, duchies, empires and republics which have now disappeared but which were once fixtures on the map of their age. What happened to the once-great Mediterranean 'Empire of Aragon'? Where did the half-forgotten kingdoms of Burgundy go?