Who is the true heir to Gryffindor?
The Heir of Ravenclaw was an individual prophesized by the centaur Harmonthrep (Ajrand) to bring honor and glory to the House of Ravenclaw. The Heir of Ravenclaw was in time revealed to be Brian Dumbledore (Ajrand).
The Heir of Hufflepuff was a person foretold by the Seer Harmonthrep (Ajrand) to bring great glory and honor to the House of Hufflepuff, considered boring and lackluster by most.
At some point in the tenth century, four of the greatest witches and wizards that ever lived founded Hogwarts School of Witchcraft and Wizardry. Their names were Godric Gryffindor, Rowena Ravenclaw, Helga Hufflepuff and Salazar Slytherin.
Voldemort was Salazar's heir, and as far as it is explained, he is taking up the mission in the way he believes Salazar had intended, with the Chamber and the Basilisk.
Harry is the magical Heir of Gryffindor (and he's also a descendent of Godric), Neville of Hufflepuff, Hermione of Slytherin and Luna of Ravenclaw.
It has long been theorized that Harry is the heir to Salazar Slytherin and/or Godric Gryffindor.
The story of Chamber of Secrets, as you know, is that the Heir of Slytherin has returned and he's out for Mudbloods. The Heir of Slytherin turns out to be Ginny Weasley, who is being controlled via a magical diary that once belonged to Tom Riddle, AKA Voldemort.
Makers of fine wands since 382 BC, the Ollivanders could make quite a claim to being among the oldest wizarding families.
Peter Pevensie → Godric Gryffindor
He sometimes gets blinded by his own pride and will challenge anyone who insults it. As his gift from Santa, he is even given a sword, like the sword of Gryffindor.
It should come as no surprise, but the most powerful and legendary Hufflepuff of all time is the titular lass herself, Helga Hufflepuff.
Harley Quinn - Hufflepuff
Make no bones about it, Harley Quinn (Margot Robbie) is a Hufflepuff. Despite her eccentricities, Harley's most consistent traits are her endurance and loyalty.
When he spoke Parseltongue, a lot of students at Hogwarts thought Harry Potter was the Heir of Slytherin. He suspected it was Draco Malfoy until he discovered it couldn't be, and the Diary told Harry it was Hagrid.
House of Gaunt. Most of the exposition of the House of Gaunt's background occurs in Harry Potter and the Half-Blood Prince, through the medium of Dumbledore's Pensieve. The Gaunts were once a powerful and influential family, and are the last known descendants of Salazar Slytherin.
Her real parents were Daneel and Dean Novak, Pureblooded wizards. Turns out Daneel was Tom Riddles younger sister, Daneel Riddle. Of course, the Riddles were related to Salzar Slytherin himself, and this made Hermione the living heir of Slytherin.
The Longbottoms
Neville comes from a long-line of pure-blood wizards, although we don't know as much about the individuals as we do with some other wizarding families. What we do know is that both of Neville's parents were pure-blood, as was his gran, Augusta.
"Pure-blood" is the term applied to wizards and witches who have no Muggle blood, Muggle-borns, or half-bloods at all in their family trees. They are the rarest of the three blood statuses, with J.K. Rowling stating that ten per cent of the wizarding community is made up of pure-bloods.
Credence Isn't Voldemort's Dad But He Could Be Snape's Grandpa. Before Fantastic Beasts and Where to Find Them came out, it seemed like the story's only real Potter connection would be Newt Scamander's relation to Luna Lovegood and a Dumbledore name-drop.
Tom was educated at Hogwarts School of Witchcraft and Wizardry from 1938 to 1945, and was Sorted into Slytherin House, a nod to his ancestor Salazar Slytherin himself.
The ability to speak Parseltongue is usually inborn; a wizard is born being able to speak Parseltongue, and those who are not born with the ability cannot normally learn the language (although, according to the author, Dumbledore may have learned to understand it, and in Harry Potter and the Deathly Hallows, Ron learnt ...
Dumbledore, at one point, possessed all three Deathly Hallows. From Dumbledore's letters to Grindelwald in Deathly Hallows, it is obvious that the headmaster of Hogwarts was obsessed with the idea of the Hallows in his youth.
Salazar married a witch named Nerezza of Aosta. They had two children: Maximiliana Slytherin Argent and Cenric Slytherin. Salazar Slytherin founded Hogwarts School of Witchcraft and Wizardry with Rowena Ravenclaw, Helga Hufflepuff, and Godric Gryffindor in approximately 993 A.D.
Rowena was the wife of Godric Gryffindor and the best friend of Helga Hufflepuff. She also maintained a good friendship with Salazar Slytherin in their early years due to him being able to challenger her intelligence, but when his friendship with Godric broke down, she took her husband's side and pushed him away.