American actress, sex symbol and model who played small television roles during the 1960s before appearing in several motion pictures. She also appeared regularly in fashion magazines as a model and cover girl.
After receiving positive reviews for her comedic and dramatic performances, Tate was hailed as one of Hollywood’s most promising newcomers. She made her film debut in the occult-themed Eye of the Devil (1966), which was produced by Martin Ransohoff. Tate also starred as Jennifer North in the cult classic, Valley of the Dolls (1967), which earned her a Golden Globe Award nomination. In 1968, in London Tate married Roman Polanski, her director and co-star in The Fearless Vampire Killers (1967). Tate’s last completed film, 12+1 (co-starring Orson Welles), was released in 1969 after her death, with the actress receiving top-billing.
On 8 August 1969, Tate was two weeks from giving birth. She entertained two friends, actresses Joanna Pettet and Barbara Lewis, for lunch at her home, confiding in them her disappointment at Polanski’s delay in returning from London. That afternoon, Polanski telephoned her as did her younger sister, Debra, who called to ask if she and their sister, Patti, could spend the night with her. Tate declined, offering to have them over another time. Later that evening, Tate dined at her favorite restaurant, El Coyote, with Jay Sebring, Wojciech Frykowski and Abigail Folger, returning at about 10:30 p.m.
Shortly after midnight, they were murdered by members of Manson’s “family” and their bodies were discovered the following morning by Tate’s housekeeper, Winifred Chapman. Police arrived at the scene to find the body of a young man, later identified as Steven Parent, shot dead in his car, which was in the driveway. Inside the house, the bodies of Tate and Sebring were found in the living room; a long rope tied around each of their necks connected them. On the front lawn lay the bodies of Frykowski and Folger. All of the victims, except Parent, had been stabbed numerous times. The coroner’s report for Tate noted that she had been stabbed sixteen times, and that “five of the wounds were in and of themselves fatal”.
Polanski was informed of the murders and returned to Los Angeles where police, unable to determine a motive, questioned him about his wife and friends. On 13 August 1969, Tate was interred in the Holy Cross Cemetery, Culver City, California, with her son, Paul Richard Polanski (named posthumously for Polanski’s and Tate’s fathers), in her arms. 
A decade after the murders, Tate’s mother, Doris, in response to the growing cult status of the killers and the possibility that any of them might be granted parole, organized a public campaign against what she considered shortcomings in the state’s corrections system. It resulted in amendments to the California criminal law in 1982 that allowed crime victims and their families to make victim impact statements during sentencing and at parole hearings. Doris Tate was the first person to make such an impact statement under the new law when she spoke at the parole hearing of Charles “Tex” Watson, one of her daughter’s killers. She believed changes in the law had afforded her daughter dignity that had been denied her before and that she had been able to “help transform Sharon’s legacy from murder victim to a symbol of victims’ rights”.
A book by Tate’s sister, Debra Tate, titled Sharon Tate: Recollection, was released in 2014.
Link to Wikipedia biography