Sylvester Stallone's Half-Sister Dies Just Six Weeks After His Son

Sylvester Stallone

Sylvester Stallone's Half-Sister Toni Ann Filiti Dead at Age 48

It's been a rough go for actor Sylvester Stallone lately.

Sadly, his half-sister, Toni Ann Filiti, has died. She was 48 years old.

The death of his half-sister comes on the heels of Stallone's son's death -- Sage Stallone passed away just six weeks ago.

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Filiti died Sunday at her mother's home after a battle with lung cancer.

Stallone's mother, Jackie, 90, commented to the New York Daily News, "What a terrible month. First Sage and now Toni. It's hard. At least they're together now in heaven."

His mother added, "He said he can't take any more pain. He said he'll always be there for her son."

Indeed, it's been a series of tragedies for Stallone, who has somehow managed to keep up appearances to promote his latest movie The Expendables 2.

Results of his son's toxicology report are still pending, so the final cause of death has not been revealed.

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At the time of his son's death, Stallone commented in a statement: "This agonizing loss will be felt for the rest of our lives. Sage was our first child and the center of our universe."