Harry/Albus Potter Wiki
Rowena Ravenclaw.jpg
Emerald Slytherin
Biographical information

Post 982


Sometime between 996 and 1000 Black Wood, Southwest Germany

Blood status


Physical description




Hair colour
  • Brown (formerly)
  • Silvery Grey-Black
Eye colour

Shrewd Green

Skin colour

Pale (formerly)


Family information
Family members
  • Herpo the Foul (ancestor) †
  • Tertius Slytherin (father) †
  • Cordelia Slytherin (mother) †
  • Salazar Slytherin (older brother) †
  • Elianna Slytherin (niece) †
  • Asmodeus Slytherin (grand-nephew) †
  • Nagini Gryffindor (nee Slytherin) (great grandniece) †
  • Vrael Gryffindor (great-grandnephew-in-law) †
  • Naeridana Peverall (nee Gryffindor) (great-great-grandneice) †
  • Briam Peverall (great-great-grandnephew) †
  • Cadmus Peverell (great-great-great-grandnephew) †
  • Antioch Peverell (great-great-great-grandnephewr) †
  • Ignotus Peverell (great-great-great-grandnephew)
  • Ignotus's Son (great-great-great-great-grandnephew) †
  • Iolanthe Peverell (great-great-great-great-great-grandneice) †
  • Henry Potter (distant descendant) †
  • Fleamont Potter (distant descendant) †
  • James Potter (distant descendant) †
  • Harry Potter (distant descendant)
  • James Sirius Potter (distant descendant)
  • Albus Severus Potter (distant descendant)
  • Lily Luna Potter (distant descendant)
  • Gormlaith Gaunt (distant descendant) †
  • Rionach Gaunt (distant descendant) †
  • Isolt Sayre (distant descendant) †
  • Rionach Steward (distant descendant) †
  • Martha Steward Il (distant descendant) †
  • Corvinus Gaunt (distant descendant)
  • Marvolo Gaunt (distant descendant) †
  • Morfin Gaunt (distant descendant) †
  • Merope Gaunt (distant descendant) †
  • Tom Riddle (distant descendant) †
  • Delphini (distant descendant)
Magical characteristics

Unknown length, snakewood, Basilisk horn

  • First Hogwarts Potions Mistress
  • Ghost of Slytherin


  • Slytherin Family
  • Hogwarts School
    • Slytherin

Emerald Slytherin was a pure-blood witch, the younger sister of Salazar Slytherin, co-founder of Hogwarts School of Witchcraft and Wizardry and a ghost of Slytherin House. She attended Hogwarts as one of the first students and was sorted into Slytherin, where she taught Potions. During her time at the magical school, she befriended Helena Ravenclaw. At some point after starting her education, Emerald stole her brother's staff in an attempt to make herself unique from her brother instead of just being known as "the sister of Slytherin" and ran away to Black Forest. Her brother eventually left Hogwarts but, after becoming fatally ill, he returned to the school and, hoping to see his sister one last time, sent Minverin Pertran, a man who harboured an unrequited love for Emerald, to find her. In a fit of rage, the Minverin murdered her when she refused to return with him, before he committed suicide out of regret for what he had done.

Salazar Slytherin, her older brother

Emerald and the Minverin eventually returned as ghosts to Hogwarts Castle, where she became and continues to be a Ghost of Slytherin House.