|House||Julio-Claudian Dynasty (by marriage)|
|Father||Sextus Aelius Catus|
She was born into the family of the Aelii Tuberones, and thus apparently descended from the consul of 11 BC, Q. Aelius Tubero. Her father may have died when she was very young, as she was raised by a relative—Praetorian Guard Prefect Lucius Seius Strabo, the biological father of her adoptive brother Lucius Aelius Sejanus, commander of the Praetorian Guard under the Emperor Tiberius.
Aelia Paetina married the future Emperor Claudius in 28 as his second wife. Their only child was their daughter Claudia Antonia, born in 30. Claudius divorced Paetina after October of 31 AD, when her adoptive brother fell from power and was murdered. According to Suetonius, Claudius divorced Paetina for slight offenses. It has been further suggested by Leon that these slight offenses could more specifically refer to "mental cruelty" towards Claudius.
In 48, after the execution of Claudius’ third wife Valeria Messalina, Claudius considered marrying for the fourth time. Claudius’ freedman Tiberius Claudius Narcissus suggested to him a remarriage to Paetina, and reminded him they had a child together. Narcissus also stated that Paetina would cherish Antonia in addition to Claudia Octavia and Britannicus, Claudius’ children with Messalina. But another freedman, Gaius Julius Callistus, was against Claudius remarrying Paetina and stated to Claudius that he divorced her before; Callistus said that remarrying Paetina would make her more arrogant. Callistus suggested Lollia Paulina, Caligula's third wife. The third freedman, Marcus Antonius Pallas, recommended Claudius' niece and Caligula's sister Agrippina the Younger, who also had a child from a previous marriage, the future Emperor Nero. Ultimately, Agrippina was chosen.
- de la Bédoyère, Guy (2018). Domina. Yale University Press. p. 177. ISBN 9780300230307.
- Seutonius; Rolfe, John C. (2018). The Twelve Caesars. Dover Publications. p. 280. ISBN 9780486822198.
- Leon, Ernestine (1948). "The Imbecillitas of the Emperor Claudius". Transactions and Proceedings of the American Philological Association. 79: 85–86. doi:10.2307/283354. JSTOR 283354.
- Tacitus (1973). The Annals of Imperial Rome. Penguin UK. ISBN 9780141904795.