
From Wikipedia
Marion Davies (January 3, 1897 – September 22, 1961) was an American film actress, producer, screenwriter, and philanthropist.
Davies was already building a solid reputation as a film comedienne when newspaper tycoon William Randolph Hearst, with whom she had begun a romantic relationship, took over management of her career. Hearst financed Davies' pictures, promoted her heavily through his newspapers and Hearst Newsreels, and pressured studios to cast her in historical dramas for which she was ill-suited. For this reason, Davies is better remembered today as Hearst's mistress and the hostess of many lavish events for the Hollywood elite. In particular, her name is linked with the 1924 scandal aboard Hearst's yacht where one of his guests, film producer Thomas Ince, became ill. Despite the legend surrounding Ince's death, likely from alcohol consumption, he did not die on the Hearst yacht. The producer died a few days later in the arms of his wife.
In the film Citizen Kane (1941), the title character's wife—an untalented singer whom he tries to promote—was widely assumed to be based on Davies. But many commentators, including Citizen Kane writer/director Orson Welles himself, have defended Davies' record as a gifted actress, to whom Hearst's patronage did more harm than good. She retired from the screen in 1937, choosing to devote herself to Hearst and charitable work.
In Hearst's declining years, Davies provided financial as well as emotional support until his death in 1951. She married for the first time eleven weeks after his death, a marriage which lasted until Davies died of stomach cancer in 1961 at the age of 64.

Show People
1928 · as Peggy Pepper

Marianne
1929 · as Marianne

That's Entertainment! III
1994 · as (archive footage)

Ben-Hur: A Tale of the Christ
1925 · as Chariot Race Spectator (uncredited)

The Casting Couch
1995

The Pilgrim
1923 · as Congregation Member (uncredited)

It's a Wise Child
1931 · as Joyce Stanton

Five and Ten
1931 · as Jennifer Rarick

Blondie of the Follies
1932 · as Blondie McClune

Hollywood: The Dream Factory
1972 · as Self (archive footage)

Operator 13
1934 · as Gail Loveless

The Florodora Girl
1930 · as Daisy Dell

The Big Parade of Comedy
1964 · as Tina in 'The Red Mill' (archive footage)

Cain and Mabel
1936 · as Mabel O'Dare

The Young Diana
1922 · as Diana May

Hearts Divided
1936 · as Betsy Patterson

The Hollywood Revue of 1929
1929 · as Self

The Bride's Play
1922 · as Enid of Cashell / Aileen Barrett