Prof. Cassiopeia Black II

 Cassie Black

Biographical information

Full Name

Cassiopeia Walburga Black II

Namesake(s)

• Cassiopeia Black I

• Walburga Black

Nickname(s)

• Cassie (by her friends)

• Cas (by Harry mostly)

• Black (by mostly Slytherin's fellow students and other house students)

• Ms. Black (by professors in Hogwarts)

• Darling, Love (by Tom Riddle only)

Date of Birth

13 September 1979, London, England, Great Britain

Blood status

Pure-blood

Marital status

Married

Nationality

British

Also known as

• The Girl Who Lived

• The Kind-Hearted Slytherin

Title(s)

• Prefect

• Head Girl

Past life

Rose Lestrange

Current Status

Alive

Physical information

Species

Human (wizard)

Level

Upper

Gender

Female

Hair colour

Dark Brown

Skin colour

Light

Family information

Children

• Sirius Regulus Riddle (eldest son)

• Merope Elizabeth Riddle II (youngest daughter)

Siblings

Draco Lucius Malfoy (adoptive brother)

Parents

• Regulus A. Black II † (biological father)

• Elizabeth Lestrange † (biological mother)

• Lucius Malfoy (adoptive father)

• Narcissa Black-Malfoy (adoptive mother)

Cousins

• Bellatrix "Bella" Black-Lestrange † (paternal cousin once removed)

• Narcissa "Cissy" Black-Malfoy (paternal cousin once removed)

• Andromeda Black-Tonks (paternal cousin once removed)

• Nymphadora Tonks-Lupin (paternal second cousin once removed/adoptive maternal cousin)

• Draco Lucius Malfoy (paternal second cousin once removed)

• Rodolphus Lestrange (maternal first cousin, once removed)

• Rabastan Lestrange † (maternal first cousin, once removed)

• Rosaline Clarisse "Rose" Lestrange † (maternal first cousin twice removed)

• Cyrus Lestrange † (maternal first cousin twice removed)

Uncles/Aunts

• Sirius Black III † (paternal biological uncle)

• Bellatrix "Bella" Black-Lestrange † (adoptive maternal aunt)

• Andromeda Black-Tonks (adoptive maternal aunt)

• Rodolphus Lestrange (adoptive maternal uncle)

• Edward "Ted" Tonks (adoptive maternal uncle)

In-laws

• Remus John Lupin (cousin-in-law, once removed)

• Astoria Greengrass-Malfoy † (cousin-in-law, once removed/adoptive sister-in-law)

Grandparents

• Walburga Black † (paternal grandmother)

• Orion Black † (paternal grandfather)

• Victoria Lestrange † (maternal grandmother)

• Edmund Lestrange † (maternal grandfather)

• Druella Rosier † (adoptive maternal grandmother)

• Cygnus Black III † (adoptive maternal grandfather)

• Abraxas Malfoy † (adoptive paternal grandfather)

Guardian(s)

• Lucius Malfoy (former legal guardian)

• Narcissa Malfoy (former legal guardian)

Relationships

Allies/Friends

• Draco Malfoy (like a brother figure to her)
• Harry Potter (best friend)
• Ron Weasley (best friend)
• Hermione Granger (best friend)
• Tom Riddle (love interest)
• Albus Dumbledore (former headmaster)
• Lucius Malfoy II (former guardian)
• Narcissa Malfoy (former guardian)
• Sirius Black III † (her uncle)
• Pansy Parkinson (former roommate and friend)
• Molly Weasley (closest)
• Arthur Weasley (closest)
• Fred and George Weasley (closest)
• Ginny Weasley (closest friend)
• Luna Lovegood (closest friend)

Romances

• Tom Riddle (husband/soulmate)

• Draco Malfoy (former Yule Ball date)

• Theodore Nott (ex-boyfriend)

Enemies

• Bellatrix Black-Lestrange † (tortured her, but Tom stopped her and erased her memories)

• Death Eaters

• Prof. Dolores Umbridge

Magical characteristics

Powers/skills

• Healing Magic
• Defence Against the Dark Arts
• Potions
• Charms
• Duelling
• Occlumency
• Flying
• Transfiguration
• Dark Arts (possibly)
• Wandless Magic

Boggart

A dark version of herself (she was afraid of seeing herself as a dark wizard)

Wand

12½", willow, phoenix feather

Patronus

Phoenix

Affiliation

Occupation

• Potion Master at Hogwarts School of Witchcraft and Wizardry (currently)

• Hogwarts Student (formerly)

School

Hogwarts School of Witchcraft and Wizardry (1991 - 1998; graduated)

House

Slytherin

Loyalty

• House of Black

• Malfoy family

• Hogwarts School of Witchcraft and Wizardry

• Slytherin

• Slug Club

• Dumbledore's Army (1995 - 1998)

• Riddle family (in-laws)

• Albus Dumbledore

• Order of the Phoenix

• House of Weasley

• Potter family

Cassiopeia Black II is a pureblood wizard and a member of the House of Black. She was born to a pureblood wizard, Regulus Black II, and another pureblood wizard, Elizabeth Lestrange.

Biography

Early life (1980s)

Cassiopeia was born on September 13, 1979, to Regulus Black II and Elizabeth Lestrange, both pureblood wizards. Her mother died while giving birth, and her father was killed after acquiring Salazar Slytherin's locket in 1979, after she was born. She never knew or met her parents; however, she was raised by another pureblood family: Narcissa and Lucius Malfoy, who loved and raised her like their own child. Narcissa always wanted a daughter, and having Cassiopeia was a blessing. 

At a young age, Cassiopeia started having strange dreams about a boy named Tom Riddle, which she found unsettling. She had never met or known about this boy.

Hogwarts years (1991–1997)

Cassie was sorted into Slytherin like her parents, Regulus Black II and Elizabeth Lestrange, and was made Head Girl on the spot. After being sorted into Slytherin, Cassie shared a dormitory with Pansy Parkinson, Daphne Greengrass, Tracey Davis, and an Unidentified blonde Slytherin girl. She soon became good friends with Gryffindor students like Harry Potter, Ron Weasley, and Hermione Granger. Also, she was good friends with fellow Slytherins Draco Malfoy, Blaise Zabini, Daphne Greengrass, and Pansy Parkinson.

She enjoyed her years as a pupil at Hogwarts and took assignments, classes, and school rules very seriously. Her favourite subjects were initially Potions and later Defence Against the Dark Arts. Unlike his father, who was a member of the Quidditch team, she did not like to play it; she was more like she watched from the platform how others played, like her friend, Hermione Granger. 

Relationships

Family:

Parents

Elizabeth is Cassie's mother, who birthed her but never saw her grow up because she died during childbirth; however, she saw Cassie in the afterlife when Cassie died short of but was brought back to life. 

According to Dumbledore, Lizzie was his favourite student and had the best memory, especially in History.

Regulus was Cassie's father. He attended Hogwarts in the 1970s and was sorted into Slytherin, like his girlfriend, Elizabeth Lestrange, whom he loved and was promised to marry at that time. However, he died while destroying the Slytherin locket, and Lizzie died the next year.

Husband and Children

Tom Riddle

Tom was Cassie's secret lover during Hogwarts years. He was Cassie's imagination; however, it turned real when Voldemort disappeared suddenly.

After the vow to Harry and the Death Eaters' disappearance, she and Tom married and led a normal life together.

Later years, they had two children: Sirius, a name after her deceased uncle, and a middle name, Regulus, after her deceased father. Also had a daughter, Merope, after Tom's deceased mother, and a middle name, Elizabeth, after her deceased mother.

Merope Riddle II

Merope II is Tom and Cassie's only daughter and second child. She had an elder brother named Sirius, who was much older than her.

Other relatives:

Malfoy family (closest family bond)

The Malfoy family consists of Cassie's distant paternal cousins, who took her after Cassie's mother died during childbirth.

Narcissa and Lucius adopted Cassie and were her legal guardians until she turned 18.

Sirius Black III (closest family bond)

Sirius was Cassie's paternal uncle. Cassie was often at his uncle's manor when the Dark Lord was in Malfoy Manor because Narcissa and Lucius were worried about her safety there.

Later, Cassie was an eyewitness when her uncle, Sirius, was killed by Bellatrix.

Walburga and Orion Black

Orion and Walburga were Cassie's grandparents. 

Walburga may have seen Cassiopeia but not Orion because he died in 1979.

Outside family

Friends:

Harry Potter (best friend/former classmate)

Cassiopeia: "I believe you, Harry."

Harry Potter: "Thank you, Cas. It's good to hear at least someone believes me!"

                                                                    — Cassie and Harry are talking about being thrown his name from the Goblet of Fire.

 Harry was Cassie's close friend during Hogwarts years. 

 They became friends at some point 2nd the second year or earlier, and became close in 3rd year when she helped the Trio save Sirius Black, there she learned she had an uncle from the paternal side.

Ron Weasley

Cassiopeia: "I know. You don't trust me, but..."

Ron Weasley: "Well, I don't. You are Malfoy after all."

Cassiopeia: "I am not like them!!!"

— Ron's distrust of Cassiopeia.

Ron is Cassie's friend during her Hogwarts years. They weren't close initially because she was a Slytherin and a Malfoy family member, and he didn't trust her very much.

Hermione Granger (best friend/former classmate)

 Hermione is Cassie's close friend from the Hogwarts years.

 She was very close to Cassie. Both were bookworms and loved books. They sometimes studied together in the library when they had homework.

Pansy Parkinson (best friend/former classmate)

Cassiopeia: "They are not enemies, Pansy."

         Pansy Parkinson: "They are mine at least!"

— Pansy and Cassie are talking about Trio.

Pansy was Cassie's roommate in Slytherin's house. They are besties; however, Pansy dislikes hanging around with Potter, Weasley, and Granger.

Draco Malfoy (closest friend/former classmate)

Draco Malfoy: "Are you trying to make trouble by hanging around with Potter and his friends?"

Cassiopeia: "No. But you cause more trouble for us if you hang with the wrong friends!"

— Cassie talks to Draco about the Trio and chooses better friends.

Draco is Cassie's paternal cousin. They were sorted into Slytherin and are very close. He dislikes it most when she hangs around with Trio during her time. Cassie was his date in the Triwizard Tournament on Christmas Day.

His parents wanted an arranged marriage between the two; however, Cassie disagrees with their decision because she treats him like a brother, not a man, and she's in love with someone else (Tom Riddle).

Enemies:

Death Eaters

They were enemies of the whole wizarding world. Mostly, they kill Muggle families because Voldemort hates his Muggle father for leaving his mother behind when she was pregnant at that time. Cassie's family was working for Voldemort; however, Cassie hated them because they killed innocent people and families. 

But after Voldemort died and Tom's return, the Death Eaters disappeared. Tom made an Unbreakable Vow with Harry Potter to never bring back the Death Eaters and his evil reign!