Napoleon Bonaparte, France’s famed military commander and emperor, formally gave up his throne. Under the Treaty of ...

the boy she planned to make an emperor. Gradually Agrippina removed all her rivals and convinced Claudius to disinherit his own son, Britannicus. With Nero now heir, the only remaining obstacle ...

The abdication of Emperor Akihito has reignited debate on Japan's male-only succession rule. The BBC's Mariko Oi explains how the future of Japan's imperial family, one of the oldest in the world ...