Cause of death: Colon Cancer
Elizabeth Victoria Montgomery (April 15, 1933 – May 18, 1995) was an American actress whose career spanned five decades in film, stage, and television. She portrayed the good witch Samantha Stephens on the popular television series Bewitched, which earned her five Primetime Emmy Award nominations and four Golden Globe Award nominations.
The daughter of actor, director and producer Robert Montgomery, she began her career in the 1950s with a role on her father's television series Robert Montgomery Presents, and she won a Theater World Award for her 1956 Broadway debut in the production Late Love. After Bewitched ended in 1972, Montgomery continued her career with roles in many television films, including A Case of Rape (1974) and The Legend of Lizzie Borden (1975), as Lizzie Borden. Both performances earned her additional Emmy Award nominations.
Throughout her career, Montgomery was involved in various forms of political activism and charitable work.
Source : Wikipedia