Who founded Ravenclaw house in J.K. Rowling’s Harry Potter series?

Rowena Ravenclaw founded Ravenclaw house in J.K. Rowling’s Harry Potter series.

Rowena Ravenclaw was one of the four founders of Hogwarts School of Witchcraft and Wizardry. Ravenclaw house is associated with intelligence, learning, creativity, and wit, reflecting the qualities traditionally linked with its founder.

Her daughter, Helena Ravenclaw, became the Grey Lady, Ravenclaw’s house ghost. Helena stole her mother’s lost diadem, which later became one of Lord Voldemort’s Horcruxes and played an important role in Harry Potter and the Deathly Hallows.

Rowena Ravenclaw is sometimes confused with her daughter because both characters are connected to the diadem. The founder, however, is Rowena; Helena is the daughter and ghost.