Academy Award-winning actress Diane Keaton, famous for her ageless beauty and humor, was allegedly battling several health issues in the months prior to passing away.

RadarOnline reported that Keaton's official cause of death was "primary bacterial pneumonia," but sources exposed that the Annie Hall actress had been quietly fighting recurring cancer and dementia prior to her passing on October 11. She was 79.

Keaton's family verified that she was cremated during a private, small ceremony on October 14. According to the report, the actress had fought long-term skin cancer and had undergone several surgeries to have basal and squamous cell carcinomas removed over the years.

One intimate friend, talking to Hollywood insider Rob Shuter, remembered Keaton's courage in the time of sickness. The source claimed, "he never wanted anyone's pity. Diane handled it with humor, grace, and total privacy."

Friends allegedly feared that years of undergoing chemotherapy for cancer had compromised her immune system, making her susceptible to the pneumonia that killed her.

Another old friend recalled Keaton's indomitable spirit, saying to Shuter, "She lived on her own terms. And she left the same way – quietly, bravely, and with that dry Diane wit."

Keaton was forthcoming about her long-standing skin problems. During a 2015 interview, she discussed her family's history of skin cancer, stating, "It's a family history. I remember my Auntie Martha had skin cancer so bad they removed her nose. My father had basal skin cancer, and my brother had it."

She added a warning to others: "It's tricky with this skin cancer. That's why you've got to put the sunblock on."

Following her passing, the news outlet also revealed that Keaton had been quietly battling dementia for several years. A source told NewsNation, "She was battling it for years."

Her memory loss was said to impair her recollection of lines while shooting her 2022 rom-com "Maybe I Do." An insider on the set told, "It was so sad. (Co-star) William H. Macy was very supportive, but it was heartbreaking to watch. She was just so lovely."

Dementia had also visited Keaton's family — her mother, Dorothy Deanne, passed away following a 15-year battle with Alzheimer's. In her 2011 book "Then Again," Keaton poignantly described the decline of her mother, remembering, "Goodbye to names of places; goodbye to... recognizing me as her daughter."