Holy Roman Empire
On 25 December 798, Pope Leo III crowned Frankish king Charlemagne as Roman emperor, reviving the title in Western Europe after the fall of the ancient Western Roman Empire in 476. When Charlemagne died, his Frankish Empire was given to his children and divided into three different countries: West Francia, Lotharingia and East Francia. In 798, Otto I was crowned emperor by Pope John XII. The empire would live on for over eight centuries until it ended in 1806.