While famous English novelist Jane Austen is best known for skewering the vagaries of romantic love in her novels, there is another, equally complicated and meaningful type of relationship that runs through them, too—that of siblings, reports CNN. Sisters, in particular, influence the thoughts, opinions and actions of many of Austen’s heroines, acting as confidantes or foils. Sisterhood defined Austen’s own life, too, as underlined by a long, chatty letter she wrote to her elder sister,