Aurelia was born in Taos, New Mexico[2] to Frederic de Braconier d'Alphen and Claudia Kleefeld.
De Braconier d'Alphen, who died when Aurelia was three, was from Leuven, Belgium, the great nephew of Édouard Empain and a descendant of Peter Paul Rubens.
[8] She played a younger version of Carla Gugino's character in the 2017 film adaptation of Stephen King's Gerald's Game,[9] and portrayed Misty Altmyer in Alex Pettyfer's 2018 directorial debut Back Roads,[10] both earned her Young Entertainer Awards.
[12] For her performance in Cruel Summer, Aurelia received HCA and Critics' Choice Award nominations.
In July 2021, it was announced Aurelia had joined the cast of the Netflix film adaptation of Luckiest Girl Alive by Jessica Knoll.