LOS ANGELES (KTLA) -- Legendary "Columbo" star Peter Falk has died at the age of 83.
Falk "died peacefully at his Beverly Hills home in the evening of June 23, 2011," a rep tells KTLA.
The actor had been suffering from dementia and Alzheimer's disease, according to his adopted daughter, Catherine Falk.
In 2009, a judge established a conservatorship for the ailing actor after a court battle between Catherine and Falk's wife of 34 years, actress Shera Danese Falk. His wife was appointed conservator.
Falk won four Emmys for his starring role in the television detective series, "Columbo." He also received Academy Award nominations for movies in 1959 and 1960.
Falk portrayed "Columbo" on 69 episodes from 1968 to 2003.
Like many actors of his generation, Falk began his career on the stage, honing his craft in school, community theater and off Broadway. By the late 1950s he began to star in Broadway productions, and soon made his move to Hollywood.
Falk's breakout film role came with 1960's "Murder, Inc." in the supporting part of a killer among a gang of thugs, but it was his performance on the opposite side of the law -- as police lieutenant Columbo -- that earned Falk superstardom.
As a child, Falk's right eye had been surgically removed due to a malignant tumor, and it was replaced with a glass eye. That handicap became, perhaps, the actor's major asset and physical trademark as the star of "Columbo" because it only enhanced the detective's image as a disheveled and oddball crime sleuth.
He also starred in "Princess Bride," "Brigadoon" and "The Great Race."
Falk is survived by his wife and two daughters from a previous marriage.
'Columbo' Star Peter Falk Dead at 83
The 83-year-old's daughter says her father suffered from Alzheimer's disease.
Peter Falk (Getty Images)