Following Natalie Wood‘s death, her sister claimed Robert Wagner threw his dead wife’s mother out of the home her famous daughter had given her — and forced the grieving parent to earn her bread by leading his fan club!

In an exclusive interview with the new podcast Fatal Voyage: The Mysterious Death of Natalie Wood, Natalie’s beloved sister, Lana, broke her silence about her former brother-in-law’s allegedly cruel antics following the Oscar winner’s mysterious demise.

Lana, 72, said Robert, also known as R.J., inexplicably cut her out his life — and took what appeared to be spiteful steps against his former mother-in-law.

“R.J. threw her out of the [home] that Natalie had given her because he wanted it for [his daughter] Katie and he said she didn’t need that big of a place,” Lana claimed to Fatal Voyage.

Katie Wagner, whom Robert, now 88, fathered in his second marriage to Marion Marshall, is now a celebrity reporter and TV personality.

Robert then allegedly hired Natalie’s mother to handle his fan mail.

“My mom was given a monthly salary of $2,000 to answer R.J.’s fan mail so she used to sit with all these photos and write R.J.’s name, do the envelope.” Lana claimed.

“She was given the photos, she was given the envelope and and she was given the stamps and she would sit and write his name, to, and, love Robert Wagner, put them in an envelope, seal them up and we would have to take all those things to the post office and mail them.”

The shocking tell-all is part of Fatal Voyage‘s Chapter 9, now available for download on iTunes.

The wildly popular, 12-part audio documentary, the product of years of investigative reporting, breaks new ground on Natalie’s death.

Natalie mysteriously vanished from the onetime golden couple’s yacht on Nov. 28, 1981 during a pleasure cruise to California’s island playground, Catalina, with actor friend Christopher Walken aboard.

Recently cops re-opened the case – and officially named Robert a person of interest.

In an earlier chapter of Fatal Voyage, a Los Angeles County homicide investigator said cops are now in possession of evidence suggesting Natalie’s death was the result of foul play.

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