Caligula (/kəˈlɪɡjələ/) was the popular nickname of Gaius Julius Caesar Augustus Germanicus (31 August AD 12 – 24 January AD 41), Roman emperor (AD 37–41). Caligula was a member of the house of rulers conventionally known as the Julio-Claudian dynasty. Caligula's father Germanicus, the nephew and adopted son of Emperor Tiberius, was a very successful general and one of Rome's most beloved public figures.