J.K. Rowling Celebrated Hermione Granger's 36th Birthday on Twitter

Hermione Weasley, first introduced to readers of the Harry Potter series as Hermione Granger, is celebrating her 36th birthday on Saturday.

Hermione, the bookish, heroic wizard portrayed by Emma Watson in the Harry Potter films, has long been a fan favorite, and her supporters took to Twitter today to share their happy birthday notes.

More: J.K. Rowling Has Revealed A Heartbreaking Truth About Hagrid

Even J.K. Rowling—Hermione’s creator who has long said the character is based on her—wished Hermione well:

More: J.K. Rowling Reveals New Harry Potter Backstory on Pottermore

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Write to Mandy Oaklander at mandy.oaklander@time.com.