Marlon Brando's daughter Cheyenne, who had been depressed since her lover was killed by her half-brother five years ago, committed suicide on Sunday, relatives said yesterday.

The body of Ms. Brando, 25, was found hanging in a bedroom at her mother's home in Tahiti, the relatives said. Her doctors have said she tried to take her own life at least twice before.

A spokesman for Mr. Brando said the actor, who turned 71 on April 3, would have no comment on his daughter's death. He has nine children, including several who were adopted.

Ms. Brando's lover, Dag Drollet, was shot to death at the estate of Marlon Brando in Beverly Hills on May 16, 1990. The actor's son Christian, then 32, was immediately arrested on murder charges. The authorities said he admitted killing Mr. Drollet, 26, because Mr. Drollet had beaten Ms. Brando, who was pregnant.