As she reflected on the unforgettable impact she left behind both on and off screen, her colleague posted on social media to announce the passing of actress Leslie Charleson.

Known for her decades-long portrayal of Monica Quartermaine on the popular ABC series “General Hospital,” Leslie Charleson passed away on Sunday morning at the age of 79. According to Variety, the legendary soap opera star passed away after a protracted illness.

“General Hospital’s” official Instagram account honored Charleson with a poignant letter from Executive Producer Frank Valentini. She was the “beloved matriarch of the entire cast and crew,” he said, adding that her influence on the program lasted for almost 50 years.