Oscar winner DianeKeaton has died at 79. Details on the actress’s death, her career highlights, and what’s known so far about the cause.DianeKeaton, Oscar-winning actress, has died at age 79. Keaton's acclaimed career included Annie Hall, The Godfather, directing, and writing. Is DianeKeaton related to Michael Keaton? No. This article originally appeared on For The Win: How did DianeKeaton die? Causeofdeath for legendary actress. GettyImages-1351786775 dianekeatoncauseofdeath. DianeKeaton in November 2021.DianeKeaton lived life to the fullest up until her death. On October 11, news broke that the actress had died in California at the age of 79. Legendary actress DianeKeaton has passed away at 79 in California. The causeof her death remains undisclosed, with her family seeking privacy. Keaton battled bulimia, an eating disorder that began in the 1970s. Hollywood legend DianeKeaton has passed away from pneumonia, her family announced today. Devastated relatives have honoured the actress, celebrated for her iconic portrayal of Kay Adams in The Godfather and her memorable partnerships with Woody Allen... The family of Hollywood actress DianeKeaton have revealed the actress's causeofdeath. | Getty Images. A source previously told the magazine that Keaton’s health situation “declined very suddenly” prior to her death. DianeKeatoncauseofdeath, DianeKeaton pneumonia, DianeKeaton family statement, Hollywood news, tribute to DianeKeaton. "The Keaton family are 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," the family said in a statement to People. DianeKeaton’s family has confirmed the beloved Oscar-winning actress died of pneumonia on October 11. She was 79. In a statement shared with PEOPLE, her loved ones expressed their gratitude for the outpouring of support following her passing. While the official causeofDianeKeaton's death has been confirmed as pneumonia, a close friend of the actress claimed that she had been battling another undisclosed illness prior to her passing. The devastating news of Diane's death was announced on Oct.