Ben Affleck's mom Chris's cause of death revealed after she died at his home

Details regarding the passing of Chris Affleck, the mother of actors Ben and Casey Affleck, have been made public following the family's decision to keep the news private for several weeks. Chris passed away on June 2 at the age of 83. Her death certificate confirms the immediate cause of death was cardiopulmonary arrest, with pancreatic adenocarcinoma listed as the underlying condition.

Reports indicate that Chris died at Ben Affleck's residence. Her passing occurred just two days after she reached a significant personal milestone. On May 31, 2026, she attended her grandson Samuel's middle school graduation, a goal she had prioritized following her diagnosis in December 2025. Her obituary noted that witnessing this event was her greatest wish, and she died peacefully in her sleep shortly thereafter.

While widely recognized as the mother of two prominent Hollywood figures, Chris maintained a career as an educator and a lifelong commitment to social activism. Her background included teaching literacy in Mississippi during Freedom Summer, protesting the Vietnam War, and volunteering for political campaigns. She also participated in water justice advocacy and supported local environmental initiatives like Sustainable Cape.

Chris also held a meaningful connection with Jennifer Garner, the ex-wife of her son Ben. Even after their divorce, Garner and Chris maintained a close bond, with the former mother-in-law remaining a steady presence in the lives of her grandchildren. She was frequently seen attending family events and supporting the family during challenging periods, including periods of rehabilitation for her son. The family eventually shared the news of her passing on July 24, nearly two months after her death.