Oscar families:Two families have three generations of Oscar winners in their ranks, Huston and Coppola:
The Huston family: Walter Huston won Best Supporting Actor for his role in The Treasure of Sierra Madre); John Huston won Best Director, The Treasure of Sierra Madre in 1948, and Anjlica Huston won Best Supporting Actress for her role in Prizzi'sHonorin 1985. The Hustons remain the only grandfather, father and daughter to have won Oscars.
The Coppola family: Carmine Coppola won Best Original Dramatic Score, The Godfather in 1974; Francis Ford Coppola won Best Original Screenplay for Patron (1970), Best Adapted Screenplay, The Godfather (1970), Best Picture, Best Director and Best Original Screenplay, The Godfather: Part II (1974), and Sofia Coppola's Lost in Translation won for Best Original Screenplay in 2004; Nicholas Cage, Francis Ford Coppola's nephew, won Best Actor for his role in Leaving Las Vegas, in 1995.
The Minnelli family: Liza Minnelli is the only Oscar winner with two Oscar winning parents: her mother Judy Garland, received a honorary Oscar as Outstanding Juvenile Performer for The Wizard of Oz and her father, Vincente Minnelli, won Best Director for Best Picture, Gigi (1958).
The Epstein family: The only twins to win Oscars are Julius J Epstein and Philip G Epstein, who shared the Best Screenplay award s with Howard Koch for Casablanca (1942).
https://didyouknow.org/fastfacts/oscars/
