Severus Snape made the Unbreakable Vow to Narcissa Malfoy at Bellatrix Lestrange's suggestion. It was meant to ensure that he wouldn't do anything against Draco's best interest and that he would ...

Andromeda Tonks was raised as a member of the Ancient House of Black and was a sister to Dark witches Narcissa and Bellatrix. The Blacks were known for pure-blood ideology, which is why many ...