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
Agrippina the Elder Caesar, Tiberius Julius Caesar, a child of unknown name (normally referenced as "Ignotus"), Gaius the Elder, the Emperor Caligula (Gaius the Younger), the empress Agrippina the Younger, Julia Drusilla, and Julia Livilla. Only six of his children came of age; Tiberius and the Ignotus died as infants, and Gaius the Elder in his early childhood. Her husband's career in the military began in AD 6, with the Batonian War in Pannonia and Dalmatia. Throughout Germanicus' military career, Agrippina is known to have traveled with her husband and their children. Germanicus' career advanced steadily as he advanced in ranks following the