thumb|A female bust, possibly depicting Lucilla, 160-180 AD
Annia Aurelia Galeria Lucilla or Lucilla (7 March 148 or 150 – 182) was the second daughter of Roman emperor Marcus Aurelius and Roman empress Faustina the Younger. She was the wife of her father's co-ruler and adoptive brother Lucius Verus and an elder sister to later emperor Commodus. Commodus ordered Lucilla's execution after a failed assassination and coup attempt when she was about 33 years old.
Early life
Born and raised in Rome into the empire's ruling family, Lucilla was a younger twin with her elder brother Gemellus Lucillae, who died around 150. Lucilla's maternal grandparents were Roman emperor Antoninus Pius and Roman empress Faustina the Elder and her paternal grandparents were Domitia Lucilla and praetor Marcus Annius Verus.
Marriages and ascension to Empress
thumb|upright=.7|left|Statue of Lucilla depicted as Venus (Skulpturensammlung, Dresden)
In 161, when she was between 11 and 13 years old, Lucilla's father arranged a marriage for her with his co-ruler Lucius Verus. Verus, 18 years her senior, became her husband three years later in Ephesus in 164. At this marriage, she received her title of Augusta and became a Roman empress. At the same time, Marcus Aurelius and Lucius Verus were fighting a Parthian war in Syria.
Lucilla and Lucius Verus had three children:
- Aurelia Lucilla was born in 165 in Antioch
- Lucilla Plautia
- Lucius Verus
Aurelia and Lucius died young.
Lucilla was an influential and respectable woman and she enjoyed her status. She spent much time in Rome, while Verus was away from Rome much of the time, fulfilling his duties as a co-ruler. Lucius Verus died around 168/169 while returning from the war theater in the Danube region, and as a result, Lucilla lost her status as empress.
Quintianus' nephew, brandishing a dagger or sword, bungled the assassination attempt. As he burst forth from his hiding place to commit the deed, he boasted to Commodus "Here is what the Senate sends to you", giving away his intentions before he had the chance to act. Commodus's guards were faster than Quintianus and the would-be assassin was overpowered and disarmed without injuring the emperor.
Commodus ordered the deaths of Quintianus' nephew and of Marcus Ummidius Quadratus Annianus, and banished Lucilla, her daughter, and Ummidia Cornificia Faustina to the Italian island of Capri. He sent a centurion there to execute them later that year.