Here's a summary of Grindelwald's role in the Harry Potter universe:
* Powerful Dark Wizard: He was a powerful and ambitious wizard who believed in the supremacy of wizards over non-magical people (Muggles).
* Rival of Dumbledore: He was Albus Dumbledore's best friend and rival, who turned to dark magic and became a formidable threat.
* Maker of the Elder Wand: He was the previous owner of the Elder Wand, a powerful magical artifact that could only be won through a duel.
* Threat to the Wizarding World: He caused a lot of chaos and destruction in the wizarding world before Dumbledore ultimately defeated him.
Grindelwald's role in *Harry Potter and the Deathly Hallows* is limited to:
* Being mentioned: His name is mentioned in connection with the Elder Wand and its history.
* His legacy: His actions and beliefs serve as a reminder of the dangers of unchecked power and prejudice.
* Influence on Voldemort: Grindelwald's legacy and quest for power likely influenced Voldemort's own ambitions.
Therefore, while Grindelwald isn't a direct character in the book, his presence is felt throughout the story, influencing key events and characters.