Annabella's mistake was to refuse, haughtily, his first proposal of marriage: it ensured that he would ask again (after all, who could resist a woman who turns away the hottest man in town?) and allowed Fate to intervene in the person of Augusta Leigh, Byron's half-sister, daughter of his reckless, ruthless, alcoholic father, "Mad Jack" Byron. Where Annabella was a prim, stiff woman - Byron nicknamed her the Princess of Parallelograms - Augusta was sultry, sensual and, according to Crane, extraordinarily submissive.