Just wondering - since you inverted the order of her apellidos (the father's name comes before the mother's in Mexico).
I'm assuming that Maria's full name at birth should have been Maria Lopez Levy, since Ariel's mother's surname (Padilla) is dropped and replaced by her mother's last name, Levy).
When Ariel Lopez Padilla gave custody to Talina Fernandez (Mariana Levy's mother) did they officially change her name so that her mother's apellido (Levy) came first? That would be really unusual!
Or is she known as Maria Levy Padilla for "artistic" reasons, since it would be easy in Mexico to figure out whose daughter she is by using those last names? (Although reading her name, any Spanish speaker would automatically assume that her FATHER was Levy and her MOTHER was Padilla.....)