"Germanicus Julius Caesar (24 May 15 BC – 10 October AD 19) was a member of the Julio-Claudian dynasty and a prominent general of the Roman Empire, who was known for his campaigns in Germania. The son of Nero Claudius Drusus and Antonia Minor, Germanicus was born into an influential branch of the patrician gens Claudia. The agnomen Germanicus was added to his full name in 9 BC when it was posthumously awarded to his father in honor of his victories in Germania. In AD 4, he was adopted by his paternal uncle, Tiberius, who succeeded Augustus as Roman emperor a decade later. As a result, Germanicus became an official member of the gens Julia, another prominent family which he was related to on his mother´s side. His connection to the Julii was further consolidated through a marriage between himself and Agrippina the Elder, a granddaughter of Augustus. He was also the older brother of Claudius, the father of Caligula, and the maternal grandfather of Nero." - (en.wikipedia.org 25.05.2020)
