Against the odds, monarchies flourished in nineteenth-century Europe. In an era marked by dramatic change and revolutionary upheaval, Europe’s monarchies experienced an unexpected late flowering. Royal Heirs focuses on the roles and personalities of the heirs to the throne from more than a dozen different dynasties that ruled the continent between the French Revolution and the end of the First World War. The book explores how these individuals contributed to the remarkable survival of the crowns they were born to wear. Constitutions, family relationships, education, politics, the media, the need to generate ‘soft power’ and the militarisation of monarchy all shaped the lives of princes and princesses while they were playing their part to embody and secure the future of monarchy. Ranging from Norway to Spain and from Greece to Britain, Royal Heirs not only paints a vivid picture of a monarchical age, but also explores how such disparate monarchies succeeded in adapting to change and defending their position.