The cause of death for John Gilbert Getty, the grandson of oil tycoon J. Paul Getty, has been revealed two months after his death at the age of 52.
Getty died of cardiomyopathy and chronic obstructive pulmonary disease, complicated by fentanyl toxicity, the Bexar County Medical Examiner’s Office in Texas confirms to PEOPLE.
The office said the manner of death is accidental, and the news was first reported by TMZ.
Getty’s death in San Antonio on Nov. 20 was confirmed in a statement to PEOPLE by his composer father Gordon Getty.
“John leaves behind his daughter, Ivy Getty, whom he loved beyond measure, and his brothers Peter and Billy. His brother, Andrew, predeceased John. John’s mother, Ann Gilbert Getty, passed this September,” the statement read. “John was a talented musician who loved rock and roll. He will be deeply missed.”