Severus Alexander (208-235 CE) was cousin to Emperor Elagabalus, and his heir apparent. When Elagabalus was assassinated in 222 CE, the fourteen-year-old became emperor, under the auspice of his grandmother Julia Maesa, who had arranged for Alexander's accession just as she had done with Elagabalus before him. Alexander quickly did much to correct the domestic troubles Elagabalus had caused, cleaning up the image of the imperial throne and improving the morals and dignity of the state. His reign was considered prosperous, but militarily, the Empire was faced against the rising threat of the Sassanid Empire in the east, as well as the tribes of Germania. It was during his campaign against the latter that Alexander would meet his end. His attempts to negotiate peace with the Germanic tribes through bribery and diplomacy alienated many in the Roman Army, and ultimately led to his assassination in 235 CE. His death saw the end of the Severan dynasty and marked the beginning of the Crisis of the Third Century, which resulted in nearly 50 years of civil wars, foreign invasions and economic collapse throughout the Empire.