Queen of Fillory
Poppy is an Australian magician and expert on Dragons. She is a friend of Josh Hoberman. She is present in The Magician King and first introduced in Josh's house in Venice. She and Josh accompany Quentin and Julia on their quest to return to Fillory and ends up going to Fillory with them after staying up late sitting on a bed talking with all of them.
After Julia disappears beyond the end of the world Poppy takes her place as one of the queens of Fillory and eventually marries Josh and is pregnant through The Magician's Land