|"Is this all real? Or has this been happening inside my head?"
The subject of this article is a real-life person, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
Unmarried (marriage annulled)
Lady-in-waiting of Catherine of Aragon
It is a popular historical theory that Boleyn, accused by Muggles of being a witch, was actually a Squib. This theory might have been recently proved to be true. A portrait of a witch, based on Anne, was hung on Hogwarts Castle's Grand Staircase, near the second-floor landing.