Who is credited as the author of Quidditch Through the Ages within J.K. Rowling’s wizarding world?

Kennilworthy Whisp is credited as the author of Quidditch Through the Ages within J.K. Rowling’s wizarding world.

Quidditch Through the Ages is presented as a Hogwarts library book written by the fictional wizard Kennilworthy Whisp. It describes the history, rules and development of Quidditch, the broomstick sport played by witches and wizards. The fictional author is different from J.K. Rowling, who wrote the real-world book.

The book was published in the real world in 2001 under Rowling’s name, alongside Fantastic Beasts and Where to Find Them. These companion books were issued to support Comic Relief, with proceeds helping charitable projects.

Readers sometimes confuse Whisp with other fictional authors in the wider wizarding world. Bathilda Bagshot wrote A History of Magic, while Newt Scamander is credited with Fantastic Beasts and Where to Find Them. Those titles belong to different in-universe writers.