Dorothy Marie Stone, Sharon’s mother, has died. She was 91.

“My hilarious, complex mother died,” Sharon, 67, said in a touching Instagram post on Monday, July 21. Her remarks accompanied a photo of Dorothy and Sharon seated on a sofa, smiling and laughing.

Dorothy “passed away peacefully with her family and close friends by her side on March 26, 2025,” according to the Montana publication Daily Inter Lake.

Dorothy was born in 1933, as the Oscar nominee said in her article. “Let’s not repeat what happened during the previous depression. 🇺🇸” “Let us protect and care,” Stone wrote.

Sharon, her two other children, Kelly and Michael, and numerous grandkids survive the native Pennsylvanian. Dorothy, often known as “Dot” among her friends, married Joseph Stone in 1950. They stayed married until he died in 2009, shortly before their 60th anniversary, according to the Daily Inter Lake.

Dorothy worked as a bookkeeper at Aggressive Forge, the tool and die firm that her husband started. Following his death, she divided her time between Lakeside, Montana, and Beverly Hills.

In a 2021 career retrospective at the Zurich Film Festival, Sharon called her mother’s parenting approach “tough,” adding that feminism was one of “the rules of my household.” She remembers begging Dorothy, “Why don’t you let me lean on you?” She responded, “Because I taught you to stand on your own two goddamn feet.”

The Basic Instinct actor has paid tribute to her mother on social media several times, including with a photo of her in November 2023. “Mom was born in 1933. At the time, she wrote, “She looks beautiful.” Sharon revealed in November 2021 that Dorothy had suffered an acute stroke.

Gwyneth Paltrow, Allison Janney, Billy Eichner, Melanie Griffith, and Uzo Aduba all expressed their support for Sharon’s new update.

Stone has three children. She and her then-husband, Phil Bronstein, adopted their 25-year-old son, Roan, in 2000. She also adopted two sons: Laird, 20, in 2005, and Quinn, 19, in 2006.