The Hogwarts founders, also known as the Hogwarts Four, were four witches and wizards who established Hogwarts School of Witchcraft and Wizardry during the medieval era, in the 10th century. These four founders are widely described as being the most brilliant witches and wizards of the time and were the following: Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw and Salazar Slytherin. Each of them created their own House: Gryffindor, Hufflepuff, Ravenclaw and Slytherin respectively. They laid the foundations for the largest and most prestigious Wizarding school in Britain.