Does Dumbledore mention Grindelwald in Harry Potter?

Grindelwald's first mention in the "Harry Potter" series is inconspicuous. He's simply a name dropped on Albus Dumbledore's chocolate frog card in "Harry Potter and the Sorcerer's Stone": "Dumbledore is particularly famous for his defeat of the Dark wizard Grindelwald in 1945."

Did JK Rowling wrote crimes of Grindelwald?

The powerful Dark wizard Gellert Grindelwald was captured in New York with the help of Newt Scamander. ... Fantastic Beasts: The Crimes of Grindelwald is the second screenplay in a five-film series to be written by J.K. Rowling, author of the internationally bestselling Harry Potter books.

What did Grindelwald think of Voldemort?

Grindelwald thought that Voldemort was a powerful idiot who was unmatched in powers and abilities (other than Dumbledores) yet had nothing to show for.

Did Tom Riddle know Grindelwald?

Tom Riddle opened the Chamber in the spring of 1943, by that time the Gridewald-war was in full swing. Tom Riddle sat his NEWTs by the time Dumbledore and Grindelwald fought their titanic duel. No, Grindelwald did not know Tom Riddle, Riddle made sure to keep a lower profile after the death of Myrtle.