Agrippina the Younger sources describe Agrippina's personality as ruthless, ambitious, violent, and domineering. Physically she was a beautiful and reputable woman; according to Pliny the Elder, she had a double canine in her upper right jaw, a sign of good fortune. Many ancient historians accuse Agrippina of poisoning her husband Claudius, though accounts vary. In AD 59 Agrippina was executed on the orders of her son, the emperor Nero. Agrippina was the first daughter and fourth living child of Agrippina the Elder and Germanicus. She had three elder brothers, Nero Caesar, Drusus Caesar and the future Emperor Caligula, and two younger sisters, Julia
Agrippina the Younger first marriage to praetor Tiberius Nero, and was the Emperor Tiberius's younger brother and Augustus's stepson. In the year 9, Augustus ordered and forced Tiberius to adopt Germanicus, who happened to be Tiberius's nephew, as his son and heir. Germanicus was a favorite of his great-uncle Augustus, who hoped that Germanicus would succeed his uncle Tiberius, who was Augustus's own adopted son and heir. This in turn meant that Tiberius was also Agrippina's adoptive grandfather in addition to her paternal great-uncle. Agrippina was born on 6 November in AD 15, or possibly 14, at Oppidum Ubiorum, a Roman outpost on