Los Angeles, CA (CNN) — Veteran actress, Jeanne Cooper, has died.
Her son, actor Corbin Bernsen, says his mother died Wednesday at the age of 84.
He tweeted, "She was in peace and without fear."
Cooper is probably best known as playing the matriarch Katherine Chancellor on the soap opera "Young and the Restless."
Shee had the role for 39 years with hundreds of exciting plot twists including the famed catfight with her on-screen nemesis, Jill Abbott.
No cause of death hasn't been given for Cooper, but she had been suffering from an undisclosed illness.
She is survived by three children, Corbin, Collin and Caren bernsen.