Marcus Valerius Messala Barbatus
Marcus Valerius Messala Barbatus (also found as Barbatus Messala in Suetonius) was a politician at the beginning of the Roman Empire; he was notably consul in AD 20. He was also the father of empress Messalina, the wife of the Emperor Claudius.
Messala was the son of Claudia Marcella Minor and Marcus Valerius Messalla Appianus. Marcella was the daughter of Octavia the Younger, the sister of Augustus and great-niece of Julius Caesar. Through his mother Messala was related to the Julio-Claudian Dynasty. Messala also had a sister, Claudia Pulchra, who married Publius Quinctilius Varus.
- W. Eck, Prosopographia Imperii Romani, Pars VIII, Fasciculus 2, Berlin, 2015 (PIR² V 141)