Who was Hogwart and what happened to the Hogwart family? Are or were any of them wizards? What else is known? Presumably there are portraits of the family as in any castle. Are any of these seen?
87326
Was Hogwarts named 'Hogwarts' because of a connection to warthogs?  Or was it named for hogs and warts separately, or something else entirely?
102761
Hogwarts castle is quite big as far as I know (7 or more floors plus all the Towers). How could Filch alone clean up the whole castle provided the fact that he is unable to use magic? Maybe Mrs. Norris helped a bit (joke)?
100355
Muggleborn wizards are wizards born of Muggles (obviously).  They tend to be born due to some wizard ancestor far back in their lineage.  As their inheritance of magical powers generations later is a statistical anomaly, do they have a lower chance of giving birth to magical children (when paired with a pure wizard) than a pure wizard couple?
34228
The question "" got me to wondering how many wizards and witches there were on the planet during the events of the Harry Potter series.    Was there any information given regarding this, either in the books or from JK Rowling herself? If there is not, then a best guess calculation would suffice.
86792
From what I’ve read on here, people remained at Hogwarts after Dumbledore’s death, mainly in Dumbledore’s Army. But why wouldn’t the parents just have their children come home?  Also, I know the Ministry was largely controlled by Death Eaters, but how did Snape remain Headmaster, especially with someone like McGonagall still present?
48590
In the Harry Potter world, there's the term "muggle" for people with no magical abilities, "muggle-born" for those with magical abilities who's parents are muggles and "squib" for those with no magical abilities who's parents are magical.  But is there any collective term for all magical people (as opposed to wizards for males and witches for females)?  I don't recall seeing any word that refers to all men and women and children with magical abilities, and it's the only group left without noun or collective noun to describe them.
25820
How many wand makers are there in the Harry Potter universe? Is there only a select few people that can make wands or is there like a wand company?
81646
I just started re-watching the Harry Potter series, and I had a curious thought.  We know that Harry was born to two parents who were capable of magic, and is able to to do magic. We know that Hermione was born to two Muggle parents, and can also do magic.  Is there anybody born to two magical parents, who is unable to do magic themselves?
40512
I went through the last book, Harry Potter and the Deathly Hallows, yesterday and a question popped in my mind: Does Death, the supposed creator of the Deathly Hallows, really exist in the Harry Potter universe? Dumbledore thought otherwise and I am with the same school of thought.  By the way who created the deathly Hallows actually?  Update:  1) Why were the brothers so sure that the hooded figure was death(couldn't it be a more powerful wizard playing with them)  2) Couldn't, Beedle and the brothers create this story?
87064
So, we know Harry . By descriptions from the books, it looks like he had enough money to spend during his school years with plenty to spare for later life.  Is there an estimate on how much money he had? How much would that be in muggle money? Was he extremely rich?  I'm thinking here that he could have received more than just an inheritance. For example, anonymous supporters could have given him money through the bank while he was a baby, or when he was about to go to Hogwarts, and he wouldn't have known (not even Dumbledore would have known).
71870
While watching Harry Potter and the Half-Blood Prince this morning, my son asked a lot of plot questions, and one of his inquiries about Tom Riddle stumped me. So, here I am, asking all you fine people for help!   Who knew first that Tom Riddle was the Heir of Slytherin: Tom Riddle or Dumbledore?  I would love to see a definitive canon answer to this question, if at all possible.   There were obviously different clues dropped over the years that pointed toward Tom Riddle being the Heir of Slytherin. A few examples:   Tom Riddle disclosed he could speak with snakes to Dumbledore when Tom was eleven and did not yet know the implications of being a Parselmouth. Merope Gaunt's Slytherin lineage.  The diary Horcrux and the Chamber of Secrets. The basilisk and Myrtle's death.   Is it established in canon -- in reference to the Heir of Slytherin, Dumbledore, and Tom Riddle -- who knew what, and when? Who knew first that Tom Riddle was the Heir of Slytherin?  As I already mentioned, I'm looking for an answer grounded in canon -- the books, interviews and/or quotes by J.K. Rowling, or Pottermore. Speculative answers within the spirit of canon are totally fine by me. I did search the site to ensure this question has not been asked already and I didn't find anything -- if this is a duplicate, vote accordingly :)
102448
In the magical world (in Harry Potter) can ghosts use magic?  Can magic be used on ghosts?  Or, once they become ghosts, can they interact with magic at all?
97813
Is there any mention on the abilities/capabilities that make Albus Dumbledore the finest wizard of his age? I know he defeated Grindewald and Voldemort was afraid of him too because of his magical knowledge.   What I want to know is as a reader, did we get to glimpse exactly what all those abilities were? We came to know that he was excellent in transfiguration (Book 5) and he could speak Mermish (Book 4) and Can perform magic using strange unknown languages (Book 2 and Book 6)..Also his work on Alchemy and Discovery of Uses of Dragon's Blood (Book 1).   Anything else that might suggest he was more knowledgeable than any other wizard alive?
24789
Leaving aside ethical and moral considerations, the whole policy of Salazar Slytherin's "we should not teach muggle-born magic-capable children" seems to be completely counter-productive to the whole "Let's not allow Muggles to know about existence of magical world" idea.  To wit, muggle-born wizards are obviously capable of performing magic (there were several examples in the book) even without wands/training, and many of them are powerful enough as far as their magical ability that it's likely to get noticed.   So, short of killing off every child that has latent magical abilities (or at least those with abilities beyond some threshold) or charming them so they are unable to do any magic, wouldn't refusal to teach them all how to PROPERLY use magic and what the rules are merely get a lot more chances for Muggles to see magic being performed which totally goes against the whole "Let's not allow Muggles realize that there are magic users around" that drives a lot of the Wizarding rules?  UPDATE Just to clarify - this question is about the idea of Salazar Slytherin himself and not the modern-day Death Eaters/Voldemort.
86092
On the , I found that Harry Potter is listed as a distant cousin under the 'Family Members' section.  Is this true? If yes, please provide proper citations from canon.
29893
As last seen, the Dursleys are forced to move by the ministry of magic, put into protective custody by the ministry. However, the ministry fell only a few weeks later, and there was evidence that it couldn't be trusted, even then. Are they still alive, and if so, how did they survive the purge from the ministry?
1262
I have been re-reading the Harry Potter books again and I noticed that Harry, Ron and Hermione have been giving each other Christmas presents each year at Hogwarts. How have they been able to buy each other presents if they are not allowed to go out of Hogwarts?   From their third year on they could visit the village and buy presents there, but what about the first two years? Did they give their personal belongings? Or did they just happen to have boxes of chocolates or books to give each other?