Meanwhile, Thraustelas slew Heraclius. Priscus reports a curious occurrence: as the emperor lay dead, a swarm of bees appeared and sucked up his blood. The day after the assassination Petronius Maximus had himself proclaimed emperor by the remnants of the Western Roman army after paying a large donative. He was not as prepared as he thought to take over and stabilize the depleted empire, however; after a reign of only 11 weeks, Maximus was stoned to death by a Roman mob. King Gaiseric and his Vandals captured Rome a few days later and sacked it for two weeks. Valentinian's reign is marked by the dismemberment of the Western Empire; by the time of his death, virtually all of North Africa, all of western Spain, and the majority of Gaul had passed out of Roman hands. He is described as spoiled, pleasure-loving, and heavily influenced by sorcerers and astrologers. Valentinian was devoted to religion, contributing to churches of Saint Lawrence in both Rome and Ravenna. He also handed over greater authority to the Papacy. On 6 June 445, he issued a decree which recognized the primacy of the bishop of Rome based on the merits of Saint Peter, the dignity of the city, and the Nicene Creed (in their interpolated form); ordained that any opposition to his rulings, which were to have the force of ecclesiastical law, should be treated as treason; and provided for the forcible extradition by provincial governors of anyone who refused to answer a summons to Rome. Valentinian was also consumed by trivialities: during the 430s, he began expelling all Jews from the Roman army because he was fearful of their supposed ability to corrupt the Christians they were serving with. According to Edward Gibbon, Valentinian III was a poor emperor:  He faithfully imitated the hereditary weakness of his cousin and his two uncles, without inheriting the gentleness, the purity, the innocence, which alleviate in their characters the want of spirit and ability. Valentinian was less excusable, since he had passions without virtues: even his religion was questionable; and though he never deviated into the paths of heresy, he scandalised the pious Christians by his attachment to the profane arts of magic and divination. John Bagnall Bury was equally scathing:  Though he had ruled for thirty years, Valentinian had influenced the destinies of his empire even less than his uncle Honorius. He only flashed once into action, when, piqued by the presumption of Aetius in aspiring to connect himself with the imperial family, he struck him down.