What role did Robert De Niro played in Godfather part 11?

In "The Godfather Part II," Robert De Niro played the young Vito Corleone, the character originally portrayed by Marlon Brando in the first film. De Niro's performance explores Vito's early life, detailing his rise to power in New York City as he navigates the challenges of immigrant life. His portrayal earned De Niro an Academy Award for Best Supporting Actor, highlighting his ability to embody the essence of the character while adding depth to Vito's backstory.