Cause of death: intestinal complications
Hope Elise Ross Lange (November 28, 1933 – December 19, 2003) was an American film, stage, and television actress. She was nominated for the Golden Globe Award for Best Supporting Actress and the Academy Award for Best Supporting Actress for her portrayal of Selena Cross in the 1957 film Peyton Place. In 1969 and 1970, she twice won the Primetime Emmy Award for Outstanding Lead Actress in a Comedy Series for her role as Carolyn Muir in the sitcom The Ghost & Mrs. Muir.
Source : Wikipedia