"On the morning of July 12, 2020, Kelly Preston, adored wife and mother, passed away following a two-year battle with breast cancer," family rep tells People
"Choosing to keep her fight private, she had been undergoing medical treatment for some time, supported by her closest family and friends," the family rep says. "She was a bright, beautiful and loving soul who cared deeply about others and who brought life to everything she touched. Her family asks for your understanding of their need for privacy at this time."
Preston is survived by her husband John Travolta and their children: daughter Ella, 20, and 9-year-old son Benjamin. Son Jettdiedat age 16 in January 2009.
https://people.com/movies/kelly-preston-dies-of-breast-cancer-at-57/