Ozzy Osbourne, here at the 62nd annual Grammy Awards on Jan. 26, 2020, died of a heart attack on July 22, his death certificate said. AP, Jan. 26, 2020

LONDON — Ozzy Osbourne died of a heart attack and had coronary artery disease in addition to suffering from Parkinson's disease for years, his death certificate said.

The singer had suffered from coronary artery disease as well as Parkinson’s, according to the certificate filed at a register office in London and obtained by The New York Times on Tuesday. Osbourne died on July 22 at 76 .

An email from The Associated Press requesting confirmation from the registry office in Hillingdon Council in northwest London, which covers the district where the Black Sabbath singer was reportedly officially pronounced dead, was not immediately

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