Unfortunately only JK knows that at the moment - it has never been mentioned in any of the books, and she has not discussed it with the public or posted it on her official site.
If you mean the Harry Potter character, then Lucius Malfoy and Narcissa Malfoy (formerly Narcissa Black)
Lucius Malfoy.
No, both of them survived.
Lucius Malfoy.
Lucius Malfoy was already married to Narcissa Black. Their son, Draco married Astoria Greengrass at some point between the end of the series and the epilogue.
If you mean the Harry Potter character, then Lucius Malfoy and Narcissa Malfoy (formerly Narcissa Black)
Draco (potters rival) , Lucius (Draco's dad the death eater), Narcissa (Draco's mother) or Scorpius (Draco's son in the epilogue)?
Lucius Malfoy.
No, both of them survived.
Narcissa and Bellatrix are sisters. Narcissa got married to Lucius Malfoy, Bellatrix became a devoted Death Eater!
Lucius Malfoy.
Lucius Malfoy does not die in the books. He, Narcissa and Draco live throughout the Battle of Hogwarts.
Lucius Malfoy and Narcissa Black
Lucius Malfoy was already married to Narcissa Black. Their son, Draco married Astoria Greengrass at some point between the end of the series and the epilogue.
Yes, she and her husband Lucius were both Death Eaters.
No. Lucius is married to bellatrix's sister, narcissa.
The only son of Lucius and Narcissa Malfoy, a junior Death-Eater.