Narcissa Malfoy, née Black is a fictional character of the Harry Potter series. Little is known of her other than her familiar relations. She was born in the House of Black and is the cousin to Sirius Black and Regulus Black, sister to Bellatrix Black and Andromeda Black. Narcissa is also the aunt of Nymphadora Tonks. She is the wife of Lucius Malfoy and mother of Draco Malfoy. Her name is derived from narcissism, which means self-love, named after Narcissus. She is described as having a nose that always looks like it is cringed as if smelling something bad.

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When the house-elf Kreacher left the Black House on Sirius' "orders," he went to the home of Narcissa Malfoy, as she was the only member of the family available that he still respected. Though limited by house-elf bondage from revealing where the Order of the Phoenix headquarters are, he did help her to discover how to lure Sirius out of the house, which ultimately led to his untimely death at the end of Harry Potter and the Order of the Phoenix.

Also significant, author J.K. Rowling has revealed that, with her husband now in prison, she is quite likely to take up a greater role in future books. Fans may be eagerly awaiting Half-Blood Prince, to discover what exactly her part will be.