That's a fictional school, fake.
Hogwarts School of Witchcraft and Wizardry (Hogwarts School of Witchcraft and Wizardry) is a school for wizards in the magical fiction novel Harry Potter by British author J.K. Rowling, and is one of the three major wizarding schools in Europe in the novel. Founded in 993 A.D., the school is a seven-year boarding school.
In Harry Potter books 1-6, the principal is Albus Dumbledore, and the current principal is Minerva McGonagall. The Hogwarts motto is "Never tease a sleeping dragon".
Hogwarts is divided into four houses: Gryffindor, Hufflepuff, Ravenclaw, and Slytherin, each of which has its own color and animal. Before the opening banquet of each school year, first-years take turns coming up on stage to put on the House Hat to be sorted into houses, which will determine which house you should belong to based on your character and qualities. Harry Potter was sorted into Gryffindor.
Hogwarts School was founded around 993 AD. The founders were four of the greatest male and female wizards of the time. The school's four houses were named after them; Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw and Salazar Slytherin.
They*** built the castle together, away from the prying eyes of muggles, who were afraid of magic in those days and times, and many wizards, both male and female, were persecuted. For the first few years, several of the founders worked together, looking around for young men and women who showed a talent for magic and bringing them to the castle to be properly trained.
But, slowly, there were divisions among them. The rift between Slytherin and the others grew wider and wider. Slytherin wanted Hogwarts to be more selective in admitting students; he believed that magical education should be limited to pure-blood families only, and he was reluctant to accept Muggle offspring, believing them to be unreliable.
After some days, Slytherin and Gryffindor had a heated argument over the issue, and then Slytherin left the school. Before leaving the school, Slytherin built a secret room in the castle, which the other founders knew nothing about.