His return to power erased a centuries-old tradition which prevented the mutilated from ruling, and he was known as Rhinometus, or, "nose-cut.
One ruler of this name was overthrown when his quarreling with Pope Sergius I and misappropriation of funds led his people to revolt against him. Upon regaining the throne he put the rebels Leontius and Tiberius Apsimarus to death and betrayed his ally King Tervel, to whom he had married his daughter Anastasia, leading to an unsuccessful war against the Bulgarians. Before his first overthrow, he lost the Battle of Sebastopolis to the Umayyads, after which this ruler ordered the butchering of all the Slavs in Bithynia. His return to power erased a centuries-old tradition which prevented the mutilated from ruling, and he was known as Rhinometus, or, "nose-cut." For 10 points, that was the second emperor of what name, who shares his name with a more famous ruler who sent Narses to spy on Belisarius and survived the Nika Riots while married to Theodora?
One ruler of this name was overthrown when his quarreling with Pope Sergius I and misappropriation of funds led his people to revolt against him.
{Justinian}