Do you actually know The Golden Trio?
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The Trio, hence the name, holds three members, being Harry Potter, Ron Weasley and Hermione Granger. Obviously The Golden Trio are the three main characters of the Harry Potter novel-series.
Harry Potter is a series of seven fantasy novels written by British author J. K. Rowling. The novels chronicle the lives of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley, all of whom are students at Hogwarts School of Witchcraft and Wizardry.