RIDDLE FAMILY TREE

This is the Riddle family tree.

Voldemort and Bellatrix had 3 daughters only 1 of which is adopted. The 3rd one is currently disowned because of the fact that she is rumored to have an affair with multiple Order Of the Phoenix children.

Quick facts about the 3 children
These are some interesting Facts about the 3 children of Voldemort and Bellatrix Lestrange.

Pandora Riddle

 * She graduated from Beaux Batons and is the oldest of the 3 children.
 * She is one of the only students without a boggart
 * Her animal is a Wolf
 * She inherited her father's temperament as seen when she found out what sierra did to Opal

Opal Marvolo Riddle

 * She is the biological twin sister of Harry Potter
 * Thus she is the only child in the family with green eyes
 * Her hair is only black because of the fire that consumed the house
 * Should she have been discovered by dumbledore she would have had the same horrible life as Harry Potter.
 * Her boggart is a clown as she has severe coulrophobia and her riddikulus is her adoptive father and her sister pandora.
 * She was in love with Crabbe and the 2 of them actually dated at some point. However he died.

Sierra Black (Née Riddle)

 * She is the youngest and the most hated out of the 3 children.
 * The reasons why she tormented Opal all these years is still unknown. It is unlikely that the fact that she was Harry's sister was the cause as Sierra only found this out when she went to hogwarts as she overheard gryffindor kids making the rumours. Even then she did not know this and she only used it as an excuse to get rid of her.
 * Ironically she was rumored to have an affair with and had a crush on Harry Potter himself which is what lead to voldemort disowning her as the scandal that it caused was too much for them to handle.
 * When asked by Rita Skeeter if she did feel any remorse for the horrible way she treated her sister, Sierra simply responded "No, I do not have any remorse." (Bear in mind Rita was on Opal's side as she interviewed Opal when she was falsely accused of using the unforgivable curse on the snitch and jinxing the game)
 * Sierra is extremely unpopular within the wizarding world. The ministry for magic have considered locking her up in Azkaban. She has received multiple Death threats.