Nero Claudius Drusus, later Drusus Julius Caesar , was the only child of Roman Emperor Tiberius and his first wife, Vipsania Agrippina. He was also a maternal cousin of the Emperor Caligula, a paternal cousin of the Emperor Claudius and a first cousin once removed of the Emperor Nero.
He was born onOctoberBC with the name Nero Claudius Drusus, and is also known to historians as Drusus II, Drusus the Younger and Drusus Minor. Drusus was named after his paternal uncle the general Drusus the Elder, who was Tiberius younger brother. He was born and raised in Rome. Drusus was the first grandchild of the statesman Marcus Vipsanius Agrippa and his first wife Caecilia Attica.
Source: Wikipedia