Larry McMurtry, author of the best-selling Lonesome Dove novels set in the Old West and an Oscar-winning screenwriter for Brokeback Mountain, has died aged 84.
"Larry McMurtry passed away last night, on March 25, of heart failure," his agent Amanda Lundberg said on Friday.
McMurtry died in Texas, where he lived most of his life and which provided the setting for many of his books and screenplays.
Besides his popular Western novels, McMurtry racked up an impressive array of film credits during his career.
McMurtry and co-writer Diana Ossana won an Academy Award for Best Adapted Screenplay in 2006 for Brokeback Mountain, based on a short story by Annie Proulx.
Several of his books were made into films including The Last Picture Show, directed by Peter Bogdanovich, and Terms of Endearment, which won the 1983 Oscar for Best Picture and featured Jack Nicholson, Shirley MacLaine and Debra Winger.
His first novel, Horseman, Pass By, was brought to the big screen under the name Hud and starred Paul Newman.
McMurtry's most popular work was 1985's Lonesome Dove, the story of two Texas Rangers, Augustus "Gus" McCrae and Woodrow F Call, set in the 1870s.
It spawned both a prequel and sequels and was made into a television series starring Robert Duvall and Tommy Lee Jones.
McMurtry lived in Archer City, Texas, where he owned Booked Up, one of the largest independent bookstores in the US.
He was awarded the National Humanities Medal by president Barack Obama in 2015.
Lundberg said McMurtry died "surrounded by his loved ones" including Ossana, his long-time collaborator, and his wife, Norma Faye, the widow of Ken Kesey, the author of One Flew Over the Cuckoo's Nest.
His son, acclaimed folk singer James McMurtry, was also at his bedside, she said.