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The members of Black Sabbath circa 1970. From left: Terry Butler (known as Geezer), Tony Iommi, Bill Ward and Osbourne.Credit…Michael Ochs Archives/Getty Images
Iommi and Osbourne onstage during a Black Sabbath show in London in 1973.Credit…Ian Dickson/Redferns, via Getty Images
Osbourne in 1973, the year that Black Sabbath released its fifth album, “Sabbath Bloody Sabbath.”Credit…Michael Putland/Getty Images
Black Sabbath performing in Los Angeles in 1974. The band briefly lived in the city but ultimately returned to its native England.Credit…Michael Ochs Archives/Getty Images
Ward, Iommi, Osbourne and Butler during a photo shoot in London in 1975, the year Black Sabbath’s sixth album, “Sabotage,” was released.Credit…Roger Morton/Cleopatra Records, via Getty Images
Osbourne during a Black Sabbath performance at Madison Square Garden.Credit…Fin Costello/Redferns, via Getty Images
Osbourne with two of his children, Louis and Jessica, in 1978.Credit… Staff/Mirrorpix, via Getty Images
Osbourne with his son Louis — from his first marriage, to Thelma Riley — in 1981.Credit…John Higgins/Mirrorpix, via Getty Images
Osbourne and his second wife, Sharon Osbourne, who had worked as his manager, in Brazil in 1985.Credit…Dave Hogan/Getty Images
Osbourne with his son Jack in 1985.Credit…Mike Maloney/Daily Mirror/Mirrorpix, via Getty Images
Osbourne deploying his signature charisma during a Black Sabbath performance in England.Credit…Mick Hutson/Redferns, via Getty Images
Osbourne in Amsterdam in 1998.Credit…Niels van Iperen/Getty Images
From left: Ozzy Osbourne, Robert Marcato, Sharon Osbourne, Kelly Osbourne and Jack Osbourne as part of “The Osbournes,” their pioneering reality TV series.Credit…Mark Weiss/MTV
Kelly, Jack and Ozzy Osbourne at home during an episode of “The Osbournes.”Credit…MTV
Iommi, Osbourne, Butler and Ward are inducted into the Rock & Roll Hall of Fame as Black Sabbath in 2006.Credit…Mike Segar/Reuters
Osbourne performing at Madison Square Garden in New York in 2009.Credit…Chad Batka for The New York Times
Osbourne singing with Black Sabbath at Madison Square Garden during the band’s final tour in 2016.Credit…Chad Batka for The New York Times
Osbourne with Jack Black at the Rock & Roll Hall of Fame last year, when Osbourne was inducted for his solo work.Credit…Chris Pizzello/Invision, via Associated Press
Black Sabbath performing at the band’s final show in Birmingham, England, this month.Credit…Sachin Ravikumar/Reuters