Agrippina the Younger and stepfather in 50. Lucius' name was changed to "Nero Claudius Caesar Drusus Germanicus" and he became Claudius's adopted son, heir and recognised successor. Agrippina and Claudius betrothed Nero to Octavia, and Agrippina arranged to have Seneca the Younger return from exile to tutor the future emperor. Claudius chose to adopt Nero because of his Julian and Claudian lineage. Agrippina deprived Britannicus of his heritage and further isolated him from his father and succession for the throne in every way possible. For instance, in 51, Agrippina ordered the execution of Britannicus' tutor Sosibius because he had confronted her and was
Emperor Xiaojing of Eastern Wei do her husband harm, kept close watch on her husband, often tasting his food to make sure that it was not poisoned. However, Emperor Wenxuan was apprehensive of the former emperor. Around the new year 552, Emperor Wenxuan invited the Princess Taiyuan to a feast inside the palace. As soon as she left her residence, Emperor Wenxuan sent assassins to force the former emperor to drink poisoned wine, and also killed his three sons. Emperor Wenxuan gave the former emperor the posthumous name of Xiaojing, and also buried him with imperial honors. However, at a later time, for reasons unknown,