**Oct. 16, 2025 – Published 2:21 p.m. ET**
There has been a new development in the news surrounding Diane Keaton’s death, RadarOnline.com can confirm. According to reports, Keaton’s death certificate has been revealed, shedding light on the cause of her passing.
### What Did Diane Keaton’s Death Certificate Say?
The death certificate confirms that Diane Keaton died of **“primary bacterial pneumonia.”** She had reportedly been battling the illness for days before her death. The certificate also noted that there were no other significant contributing conditions.
After her passing, it was confirmed that Diane Keaton was cremated on October 14.
### Family Statement on Diane Keaton’s Passing
“The Keaton family is very grateful for the extraordinary messages of love and support they have received these past few days on behalf of their beloved Diane, who passed away from pneumonia on October 11,” her family shared in a statement on October 15, confirming her cause of death.
“She loved her animals and she was steadfast in her support of the unhoused community,” they added. “Any donations in her memory to a local food bank or an animal shelter would be a wonderful and much appreciated tribute to her.”
### Diane Keaton ‘Declined Very Suddenly’
A close friend revealed, “She declined very suddenly, which was heartbreaking for everyone who loved her. It was so unexpected, especially for someone with such strength and spirit.”
“Even longtime friends weren’t fully aware of what was happening,” the friend added, insisting that her family “chose to keep things very private.”
On the day Keaton died, L.A. Fire Department paramedics responded to her home in the early morning and transported her to a nearby hospital. Dispatch audio obtained by a news outlet captured responders reporting a “person down” at her address.
### Diane Keaton’s Final Song
As previously reported by RadarOnline.com, Diane Keaton spent her final years crafting a Christmas song she referred to as her “comfort blanket.” The song was meant to console her “soon-to-be-grieving” children.
She told friends she wanted her music to “wrap her family in love when she no longer could.” According to an insider in the music industry who worked closely with Keaton, she shared that she “knew her time was coming” and wanted to leave “something soft and lasting” for her kids.
“Diane told us this song wasn’t just about loss – it was about love surviving it,” the insider said. “She said, ‘When I’m gone, I want them to play it and feel me still singing to them.’”
### Diane Keaton Was Never Married
Carole Bayer Sager, a close friend and longtime collaborator, heartbreakingly described Keaton’s appearance during her final weeks. “I saw her two or three weeks ago, and she was very thin,” Sager revealed. “She had lost so much weight. I was kind of stunned. But she was still full of ideas, talking about future songs. That’s the part that breaks my heart – she wasn’t done creating.”
Diane Keaton left behind two children but had never been married. Reflecting on her life in a 2019 interview, she said, “I think that I’m strange. I don’t know anything, and I haven’t learned. Getting older hasn’t made me wiser.”
She added, “Today I was thinking about this. I’m 73 and I think I’m the only one in my generation and maybe before who has been a single woman all her life.”
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Diane Keaton’s legacy lives on through her music, her children, and the countless lives she touched with her kindness and creativity.
https://radaronline.com/p/diane-keaton-death-certificate-revealed-cause-pneumonia/