A ree Osbourne vowed to look after her mother-in-law, Sharon Osbourne, in the wake of Ozzy Osbourne’s death. The wife of Jack Osbourne posted a poignant tribute to Instagram a few days after the Black Sabbath legend’s life was remembered with a funeral procession and memorial service at his Buckinghamshire estate.

The Black Sabbath frontman died on July 22 ate age 76 of a heart attack, with contributing factors of coronary artery disease and Parkinson’s disease.

Legendary Black Sabbath frontman Ozzy Osbourne's cause of death was a heart attack, his death certificate shows. The heavy metal icon died on July 22 at age 76, at Harefield Hospital in the United Kingdom.