He was a descendant of the Trojan prince Aeneas
He was the nephew of Julius Caesar. His name given at birth was Octavian Thurinus
Augustus forced Tiberius to divorce his wife and marry Julia (his daughter) in 11 bc. It was an unwanted and unhappy marriage for both of them.
Roman Emperor Tiberius was suspected to be the killer of Caligula's mother and brothers
He was Germanicus's brother, the father of Caligula. So basically he was the uncle of Caligula
Roman emperor for seven months (ad 68–69), whose administration was priggishly upright, though his advisers allegedly were corrupt.