Agrippina was the mother of Nero, the fifth Roman Emperor. She was a powerful and influential woman who was known for her scheming and ambition. Agrippina was the daughter of Marcus Vipsanius Agrippa and Julia the Elder, making her a great-granddaughter of the first Roman Emperor Augustus. She was also the sister of Caligula, the third Roman Emperor. Agrippina married her uncle Claudius, becoming his fourth wife, and gave birth to Nero in AD 37. She was a major influence on Nero during his reign, and is believed to have been behind many of his decisions.