641, Constantine died of an advanced case of tuberculosis, although some supporters of Constantine alleged Martina had him poisoned, leaving Heraclonas as the sole ruler, under the regency of Martina. Sole rule and fall Martina maintained the plans of Constantine, and sent Cyrus to Alexandria, with much of the praesental army. She then summoned the Thracian army to Constantinople, to replace them. Around this time, the Patriarch Pyrrhus, an influential advisor of Martina, succeeded in reviving the policy of Monothelitism. As a result of this policy, Kyros, a monothelete, regained control of the see of Alexandria, giving him both religious and secular control. Martina instructed Kyros to attempt to negotiate with the Arabs, as they believed that they were unable to defeat them militarily. Kyros met with 'Amr at the Babylon Fortress and there agreed upon the surrender of Egypt. Martina was opposed by Valentinus, who was beyond her reach in Anatolia, although she exiled his patron, Philagrius, to Africa. Heraclonas and Martina lost the support of the Byzantine Senate and people due to the rumors that Martina had poisoned Constantine and their support for Monothelitism. Also at this time, both Heraclonas and Martina's relations with the army suffered as a result of Martina's inability to raise enough funds to match the donative given by Constantine. In August 641, Valentinus marched his troops to Chalcedon, to force Martina to elevate Constans II to co-emperor. While Valentinus was encamped across the Bosphorus from Constantinople, a mob rose up in the city, demanding that Pyrrhus crown Constans II as emperor, and then abdicate, to be replaced by his steward Paul II. Martina, now in a truly desperate situation, offered the military further donatives, recalled Philagrius from Africa, and offered Valentinus the title of Count of the Excubitors. In late September/October, Martina elevated Constans to co-emperor, but also crowned Heraclonas brothers, Martinos and David. Despite these offers, Valentinus entered the city in October/November, deposed Heraclonas and Martina, and then elevated Constans to emperor. Valentinus was unwilling to kill a woman and child, but had Martina's tongue slit and Heraclonas' nose cut off in January 642, then exiled them to Rhodes; this is believed to be the first time that the political mutilation of Byzantine prisoners was utilized to signify that the person could no longer hold political power. After this, nothing is known of them, although it is believed that Heraclonas died in