We learn of her death in 
We learn of her death in the book's prologue, which reports that  Mrs. Richard Schiller died in childbirth on Christmas Day, 1952, in  Gray Star, Northwest Territories. Her first sexual experience was  with her classmate Elizabeth Talbot, followed by camp counselor  Charlie Holmes, followed by her stepfather, who was in turn  replaced by playwright Clare Quilty. FTP, name this object of  Humbert Humbert's obsession and Nabokov title character.
We learn of her death in the book's prologue, which reports that  Mrs. Richard Schiller died in childbirth on Christmas Day, 1952, in  Gray Star, Northwest Territories.
{Lolita} (Dolores {Haze})