Media tycoon Rupert Murdoch and model Jerry Hall have finalised their divorce after six years of marriage, Hall’s lawyer said on Thursday. It is the fourth divorce for the 91-year-old Murdoch, who married Hall, 66, in London in March 2016. “Jerry and Rupert Murdoch have finalised their divorce,” Hall’s lawyer Judy Poller said. “They remain good friends and wish each other the best for the future.” The Australian Murdoch, who owns many of the world’s most famous newspapers, is worth more than US$17 billion, according to Forbes. Was Rupert Murdoch’s ex-wife Wendi Deng spying for the Chinese? The couple signed a prenuptial agreement, and The New York Times reported in June that the separation is unlikely to alter the ownership structure of businesses Murdoch holds stakes in, which include the parent companies of Fox News and The Wall Street Journal . His powerful global media empire also includes the New York Post , The Times of London and British tabloid The Sun . Murdoch’s first wife was Patricia Booker, an Australian flight attendant, whom he divorced in the late 1960s. He and his second wife, Anna, a newspaper reporter, were together more than 30 years before divorcing in 1999. His third marriage to Wendi Deng ended in 2013 amid media reports that she was romantically involved with Britain’s former prime minister Tony Blair, who has denied any impropriety. Hall, born in Texas, was the long-time partner of the Rolling Stones lead singer Mick Jagger, with whom she has four children.