Brandon Blackstock died after a three-year battle with melanoma, but that wasn't the only contributing factor.

His death certificate reveals that seizures were a significant contributor.

Brandon Blackstock died on Aug. 7, after a 3-year cancer battle.

He was married to Kelly Clarkson for almost a decade and the couple had two kids, River and Remington.

His official cause of death is natural causes.

People obtained the document. They report that the Silver Bow (Montana) County Coroner listed seizures as "significant conditions contributing to death, but not resulting in the underlying cause."

Additionally, the certificate notes that Blackstock was cremated, and no autopsy was performed.

When Is Brandon Blackstock's Funeral?

Blackstock's funeral will be a private affair. The

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