Kelly Clarkson’s ex-husband Brandon Blackstock’s death certificate released

Brandon Blackstock suffered from seizures as he bravely battled cancer.

Kelly Clarkson’s ex-husband passed away last week at age 48 after a private three-year fight with melanoma, a serious skin cancer, but his death certificate reveals even more about his health issues.

The former talent manager died on August 7 at 11:13 a.m. while at his home in Butte, Montana, according to the certificate obtained by People and certified by the Butte-Silver Bow County Clerk and Recorder’s office on Thursday.

Blackstock’s cause of death was listed as malignant melanoma, with the matter of his passing being determined as natural causes.

It also noted his yearslong cancer battle and listed seizures as one of the “significant conditions contributing to death but not resulting in the underlying cause.”

No autopsy was performed on Clarkson’s ex-husband, and he was cremated, according to the death certificate, which listed his occupation as a rodeo producer in the rodeo industry.

Blackstock’s rep confirmed his passing to The Post last week.

“It is with great sadness that we share the news that Brandon Blackstock has passed away. Brandon bravely battled cancer for more than three years,” the statement read.

“He passed away peacefully and was surrounded by family. We thank you for your thoughts and prayers and ask everyone to respect the family’s privacy during this very difficult time.”