Druella Black (née Rosier) (fl. 1951-1955) was a pure-blood witch who married Cygnus Black III. The couple had three daughters: Bellatrix, Andromeda, and Narcissa Black. Through Bellatrix, she is the mother-in-law of Rodolphus Lestrange and the grandmother of her only daughter, Delphini, who was fathered by Voldemort through their affair together. Through Andromeda, who was disowned for marrying Muggle-born wizard Ted Tonks, Druella is the grandmother of Nymphadora Tonks and great-grandmother of Teddy Lupin. Through Narcissa, she is the mother-in-law of Lucius Malfoy, the grandmother of Draco Malfoy and great-grandmother of Scorpius Malfoy.