Lisette de Lapin, a French sorceress, is possibly the inspiration for Babbity Rabbity in Tales of Beedle the Bard. In 1422, she was convicted of witchcraft in Paris. (TBB)
Lisette de Lapin was a famous French sorceress and possibly a talented Animagi, who took the form of a large, white rabbit. She escaped from prison the night before she was due to be executed.
Lapin is the French word for rabbit.