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 an influential political 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 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 the boy 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. As an unattached link to Emperor Aurelius and to the late co-Emperor Verus and because of her royal-born offspring, Lucilla was not destined for a long widowhood, and thus, a short time later, in 169, her father arranged a second marriage for her with Tiberius Claudius Pompeianus Quintianus from Antioch. He was a Syrian Roman who was twice consul and a political ally to her father, but Lucilla and her mother were against the marriage as a less than ideal match, partly because Quintianus was at least twice Lucilla's age, but also because he was not of her own Roman nobilis social rank though he was descended from rulers in the East. They married nonetheless and, about a year later, in 170, Lucilla