Stars of the iconic Father of the Bride franchise will forever remember their matriarch, Diane Keaton. News broke on Saturday, October 11, that Keaton died at the age of 79. A cause of death was not immediately revealed. The Oscar-winning actress, who is survived by her two children, starred as Nina Banks in 1991's Father of the Bride opposite Steve Martin, Kimberly Williams-Paisley, Martin Short and Kieran Culkin.