In a 2005 interview with ABC, Smith recalled meeting Marshall at what she called a "gentleman's club' in Houston. "He had no will to live and I went over to see him," she said. "He got a little twinkle in his eyes, and he asked me to dance for him. And I did."

Anna Nicole Smith poses as Marilyn Monroe for a 2004 PETA ad campaign in this handout picture.[Reuters]

Marshall died in 1995 at age 90, setting off a feud with Smith's former stepson, E. Pierce Marshall, over his estate. A federal court in California awarded Smith $474 million. That was later overturned. But in May, the U.S. Supreme Court revived her case, ruling that she deserved another day in court.

The stepson died June 20 at age 67. But the family said the court fight would continue.

Smith starred in her own reality TV series, "The Anna Nicole Show," in 2002-04. Cameras followed her around as she sparred with her lawyer, hung out with her personal assistant and interior decorator, and cooed at her poodle, Sugar Pie. She also appeared in movies, performing a bit part in "The Hudsucker Proxy" in 1994.

After news came of Smith's death, G. Eric Brunstad Jr., the lawyer who represented Marshall, said in a statement: "We're very shocked by the news and extend the deepest condolences to her family."

In a statement, Playboy founder Hugh Hefner said: "I am very saddened to learn about Anna Nicole's passing. She was a dear friend who meant a great deal to the Playboy family and to me personally."

Smith's son died Sept. 10 in his mother's hospital room in the Bahamas, just days after she gave birth to a daughter.

An American medical examiner hired by the family, Cyril Wecht, said he died accidentally of a combination of methadone and two antidepressants. Last month, a Bahamas magistrate scheduled a formal inquiry into the death for March 27.

Meanwhile, the paternity of Smith's now 5-month-old daughter remained a matter of dispute. The birth certificate lists Dannielynn's father as attorney Howard K. Stern, Smith's most recent companion. Smith's ex-boyfriend Larry Birkhead was waging a legal challenge, saying he was the father.

Debra Opri, the attorney who filed his paternity suit, said Birkhead "is devastated. He is inconsolable, and we are taking steps now to protect the DNA testing of the child. The child is our No. 1 priority."

Smith was born Vickie Lynn Hogan on Nov. 28, 1967, in Houston, one of six children. Her parents split up when she was a toddler, and she was raised by her mother, a deputy sheriff.

She dropped out after 11th grade after she was expelled for fighting, and worked as a waitress and then a cook at Jim's Krispy Fried Chicken restaurant in Mexia.

She married 16-year-old fry cook Bill Smith in 1985, giving birth to Daniel before divorcing two years later.