Everyone talks about how Narcissa felt left out being the only non-star in the family (which dont get me wrong i love) but imagine 4yo Bellatrix, with 2yo Andromeda and newborn Narcissa, Aunt Walburga who calls her mum Druella. To a 4yo, being the only girl in the family whos name doesnt end in an 'a' would be devastating. So she starts going by Bella, and then her name ends in an 'a' too, but then her sisters start going by Andy and Cissy. Imagine how sad she'd feel, being left behind by her sisters whos nicknames are more similar to her little cousins Siri and Reggie than her