Tom Riddle.

It was the time of the Triwizard Tournament, several schools joined together, each choosing a student, who qualified for the tournaments on Tuesday, from Hogwarts: Cédric, from Durmstrang: Victor Krum, from Beauxbatons: Flaunder de la Cour, from Mahoutokoro: Ninja Lee, from Castelobruxo: TN GRINDELWALD
Tn was a very beautiful girl, but she did not make her presence or her beauty known, she was relaxed, calm, but that was not her true personality.
It was the day they were going to present the schools, first Beauxbatons (girls' school), then Durmstrang (boys' school), then Mahoutokoro (defense school) and finally Castelobruxo (the most privileged and expensive school, mixed, forbidden attacks, kinesiology, kinesis, powers, defenses, hexes). Everyone stared at Tn since it was known that she was Grindelwald, daughter of Gerllet Grindelwald, the greatest tri-millionaire, dark wizard and possibly the next dark lord