(later replaced by a solid gold replica of his original) to prevent his again seeking the throne: such mutilation was common in Byzantine culture. He was exiled to Cherson in the Crimea. Leontius, after a reign of three years, was in turn dethroned and imprisoned by Apsimarus, who next assumed the throne. Exile While in exile, Justinian began to plot and gather supporters for an attempt to retake the throne. Justinian became a liability to Cherson and the authorities decided to return him to Constantinople in 702 or 703. He escaped from Cherson and received help from Busir, the khagan of the Khazars, who received him enthusiastically and gave him his sister as a bride. Justinian renamed her Theodora, after the wife of Justinian I. They were given a home in the town of Phanagoria, at the entrance to the sea of Azov. Busir was offered a bribe by Tiberius to kill his brother-in-law, and dispatched two Khazar officials, Papatzys and Balgitzin, to do the deed. Warned by his wife, Justinian executed Papatzys and Balgitzin. He sailed in a fishing boat to Cherson, summoned his supporters, and they all sailed westwards across the Black Sea. As the ship bearing Justinian sailed along the northern coast of the Black Sea, he and his crew became caught up in a storm somewhere between the mouths of the Dniester and the Dnieper Rivers. While it was raging, one of his companions reached out to Justinian saying that if he promised God that he would be magnanimous, and not seek revenge on his enemies when he was returned to the throne, they would all be spared. Justinian retorted: "If I spare a single one of them, may God drown me here". Having survived the storm, Justinian next approached Tervel of Bulgaria. Tervel agreed to provide all the military assistance necessary for Justinian to regain his throne in exchange for financial considerations, the award of a Caesar's crown, and the hand of Justinian's daughter, Anastasia, in marriage. In spring 705, with an army of 15,000 Bulgar and Slav horsemen, Justinian appeared before the walls of Constantinople. For three days, Justinian tried to convince the citizens of Constantinople to open the gates, but to no avail. Unable to take the city by force, he and some companions entered through an unused water conduit under the walls of the city, roused their supporters, and seized control of