Corrected entry: The daughter of Marcus Aurelius could not be called "Lucilla" because Roman women were named after the female form of their father's nomen (second or clan name). Since "Aurelius" is the emperor's nomen, his daughter's name should be "Aurelia" (female form of the nomen) not Lucilla. She can be named Lucilla if her father's nomen is Lucius.
megamii
4th Feb 2004
Gladiator (2000)
Correction: The real, historical Lucilla was indeed an Aurelia: her full name was Annia Aurelia Galeria Lucilla Augusta. Annia is the feminine form of Annius, her father's birth nomen, Aurelia the feminine form of her father's nomen that he received when adopted by Antoninus Pius, Galeria is a (feminine) cognomen, and Lucilla is a diminutive of the female form of the name 'Lucius' (borne by both her first husband and her brother Commodus as a praenomen). Augusta is the female form of 'Augustus'.
Correction: This is correct, however since all daughters by the same father would therefore have the same name, daughters were often given nicknames to distinguish them from the others (much nicer than Aurelia Prima, Aurelia Seconda & Aurelia Tertia). I have no idea how many daughters Marcus Aurelius had, but even if he had only one, 'Lucilla' could conceivably be her nickname.