Harry is the Heir of Gryffindor (though his powers have been bound by his father when he was a baby),
Their names were Godric Gryffindor, Rowena Ravenclaw, Helga Hufflepuff and Salazar Slytherin.
Godric Gryffindor is the only founder who is not mentioned to have any descendants, although for a time it was speculated that Harry Potter himself was a descendant of Gryffindor either through James Potter possibly because James hailed from Godric's hometown, or possibly through a line of Muggles descended from a ...
We also meet Tom Riddle, who is, as it turns out, the heir of Slytherin. Present only in spirit, he has all the same been controlling Ginny, and having her act as Slytherin's heir.
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.
In the warehouse, Grisha explains that she was a student with Riddle at Hogwarts, who along with Wiglaf Sigurdsson and Lazarus Smith were the true heirs of the Hogwarts founders (Gryffindor, Slytherin, Ravenclaw, and Hufflepuff, respectively).
Ravenclaw heir is the Grey Lady; aka Helena Ravenclaw. We do not know if she has any other children or if Helena had any children.
Myrtle's life was cut shockingly short when she was killed by the Basilisk at Tom Riddle's command.
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 problem with being a female Slytherin heir, is that they're cursed.
Albus Severus is the main character in "Harry Potter and the Cursed Child." He's the ugly duckling of the family, is sorted into Slytherin, befriends Scorpius Malfoy, and isn't good at magic.
In one of these newly minted futures, Albus is in Gryffindor when he goes to school. The reason why is shockingly mundane: His cousin bet that he couldn't get into the House if his life depended on it.
Harry is the Heir of Gryffindor (though his powers have been bound by his father when he was a baby), Neville is the Heir of Hufflepuff, Meghan (OFC, daughter of Sirius) is the Heir of Ravenclaw. Harry/Ginny, Ron/Hermione, Remus/Tonks. Sixth year. After a rare magical illness Harry becomes outstandingly powerful.
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.
Through his mother's family, he is the last descendant of the wizard Salazar Slytherin, one of the four founders of Hogwarts School of Witchcraft and Wizardry.
Ginny was not the heir of Slytherin. The only reason she was able to open the chamber of secrets was because she was being possessed by the spirit Of 16-year-old Voldemort.
After Voldemort's death in 1998, Delphi became Salazar Slytherin's last known heir.
And this is why Hermione does not fit into Ravenclaw, since she lacks their creativity of thought. When you also add in her fearlessness and her strong convictions about right and wrong, which are inherently Gryffindor traits, then there was even less of a chance she'd end up wearing blue and bronze.
Rose Granger-Weasley
Sorted into Gryffindor, Rose seems to excel in everything, and unlike Hermione, even has a knack for Quidditch, being chosen for her house team as a Chaser.
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.
The explanation is very simple - Harry has a very strong sexual desire for Ginny. He has no such feelings for Hermione. Sex is a fundamental aspect of adult relations. Sex is, in fact, the characteristic that defines the difference between a platonic relationship and a romantic one.
This theory suggests that each time he created a new Horcrux, that specific Horcrux diminished a part of his soul. Thus, his nose began to sink in, eventually disappearing altogether. Due to his tampering with dark magic, his human appearance evolved into a more snake-like state.
That same year, Aragog contracted an unknown illness over the summer, and despite Hagrid's attempts to heal and comfort Aragog by feeding him giant grubs, he eventually died on 20 April, 1997.
All of the Weasleys have been sorted into Gryffindor House at Hogwarts. All of the Weasley children, except Bill and Percy who both were Head Boy, are known to have played on the Gryffindor Quidditch team, with Charlie being the captain of the team for at least one of his school years.
We learn in Harry Potter and the Deathly Hallows that Harry's ability to speak Parseltongue is actually related to the soul shard that Voldemort lost when trying to kill Harry. That soul shard had attached itself to Harry, and was the source of this ability, as well as the ability to see into Voldemort's mind.
Filius Flitwick is the Charms Master at Hogwarts and the head of Ravenclaw house. He is a very short, dwarf-like man. In Harry Potter and the Philosopher's Stone he uses his magical skills to help decorate the Great Hall for Christmas.