Camilla is the eldest daughter and the second eldest child of five in the Nohrian royal family and the daughter of King Garon and an unnamed concubine. When Corrin was adopted into the family during their childhood, she acknowledged them as one of her younger siblings. Much like Leo and Elise, Camilla was unfortunately used as a tool by her mother in order to gain favor with Garon. In a bid to fill the void left in the wake of the lack of maternal love in her life, she thereafter became obsessively attached to Corrin, acting the part of the overprotective maternal figure to them.

At some point of time prior to the events of Fates, Camilla was the target of an assassination. When the assassin approached her, Camilla offered to hire her on the spot. This assassin turned out to be Beruka, who would later be appointed as one of Camilla's personal retainers. Later, Camilla came to meet a young mercenary girl whose strong combat skills deeply impressed her. This girl, Selena, was thereafter appointed as her other retainer. Elegant, sultry, and coy, Camilla is an alluring woman who is protective of her kingdom and most importantly her family. She is marked by her strong motherly instinct that is given generously to her beloved younger siblings. Due to being deprived of a real relationship with her own mother, Camilla made it her life's mission to fill that void for them as she cherishes them above all else as well as her elder brother Xander. Though adopted, Camilla is especially fond of Corrin, of which she has shown almost excessive care towards. At times she tends to address them on a juvenile level, completely disregarding that they are both a full-fledged fighter by the start of Fates and is often smothering in her affection and care for them. Camilla is brutally honest with her protectiveness with them and would slaughter any who would bring harm or misfortune upon them. Seeing Corrin grow over the events of Fates fills her with immense pride and also sadness as they no longer have to rely on her.

With her other siblings, she displays similar motherly affection towards her two younger half-siblings, though to a much lesser degree. Leo wonders why she dotes so heavily on Corrin, her adoptive sibling, more than him, her half-brother. Camilla admits that she does give Corrin more affection, but does still dote on Leo and acknowledges his battle prowess. She even refers to him as her beloved "baby brother". With Elise, she is touched that she wishes to emulate Camilla's mature, ladylike nature though she encourages Elise to continue to be the "bright light" amidst the dark atmosphere of Nohr. With Xander, she admits that Xander's knowledge of his siblings likes and desires are on par with her, if not greater in some regards. Like her three siblings, she is supportive of his birthright to the throne. She has long purple hair and red eyes.