Agrippina the Younger outraged by Claudius' adoption of Nero and his choice of Nero as successor, instead of choosing his own son Britannicus. Nero and Octavia were married on June 9, 53. Claudius later repented of marrying Agrippina and adopting Nero, began to favor Britannicus, and started preparing him for the throne. His actions allegedly gave Agrippina a motive to eliminate Claudius. The ancient sources say she poisoned Claudius on October 13, 54 with a plate of deadly mushrooms at a banquet, thus enabling Nero to quickly take the throne as emperor. Accounts vary wildly with regard to this private incident and according
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,