Trending badgeTrendingPosted 1 hour agoSubscribe to BuzzFeed Daily NewsletterCaret DownOzzy Osbourne's Cause Of Death Has Been RevealedThe "Prince of Darkness" died last month at 76.by Kelby VeraHuffPost WriterFacebookPinterestLink Two weeks after he died at his home in Buckinghamshire, England, Ozzy Osbourne's cause of death has been revealed. Larry Busacca / Getty Images According to a death certificate detailed by the New York Times on Tuesday, the two-time Rock & Roll Hall of Fame inductee and reality star died of a heart attack on July 22. Koh Hasebe / Getty Images The document also notes that Osbourne had been living with coronary artery disease and Parkinson's disease before his death. Ilya S. Savenok / Getty Images The death certificate, which was filed with a London registry by Osbourne's daughter Aimée Osbourne, listed the heavy metal icon's occupation as "Songwriter, Performer and Rock Legend." Kevork Djansezian / Getty Images Weeks ahead of his death, Osbourne performed his last concert at a benefit in Birmingham, England, just a stone's throw from his childhood home. Paul Natkin / Getty Images At the show, where the "Prince of Darkness" performed material from his solo career as well as his time as the frontman of the seminal rock group Black Sabbath, he told the crowd, "I've been laid up for six years. Thank you from the bottom of my heart." Scott Dudelson / Getty Images During his final years, Osbourne faced a number of health issues. Kevin Winter / Getty Images A 2019 fall at his Los Angeles home led to neck surgery that sidelined his performance plans for several years. Dave Hogan / Getty Images In January 2020, he revealed that he had been diagnosed with Parkinson's disease, but at the time, he told fans that the nervous system disorder was not "a death sentence." Dave Hogan / Getty Images Fans and family mourned the rocker in his hometown of Birmingham on July 30, as his coffin was carried through the streets ahead of a private funeral. Leon Neal / Getty Images This article originally appeared on HuffPost.