Marcus Claudius Marcellus was the eldest son of Gaius Claudius Marcellus and Octavia Minor, sister of Augustus. He was Augustus' nephew and closest male relative, and began to enjoy an accelerated political career as a result. Wikipedia
Born: 42 BC, Rome, Italy
Died: 23 BC (age 19 years), Rome, Italy
Spouse: Julia the Elder (m. 25 BC–23 BC)
Parents: Octavia the Younger and Gaius Claudius Marcellus
Uncle: Augustus
Cousins: Julia the Elder and Marcus Appuleius
Aunt: Octavia the Elder