“And Grindelwald used the Elder Wand to become powerful. And at the height of his power, when Dumbledore knew he was the only one who could stop him, he dueled Grindelwald and beat him, and he took the Elder Wand.” Albus DumbledoreElder WandGellert Grindelwald Book:Harry Potter and the Deathly Hallows Source: Harry Potter and the Deathly Hallows