New details have been released relating to the death of Kelly Clarkson 's ex-husband, Brandon Blackstock , who passed away on August 7 at just 48 years old.

The former talent manager is survived by his four children and his partner, Brittney Marie Jones , with whom he lived in his home in Montana .

Details

© Getty Images Brandon passed away due to "natural causes" after a three-year cancer battle

According to Brandon's death certificate obtained by People , the doting father passed away due to "natural causes" after a three-year battle with melanoma, a malignant form of skin cancer.

Seizures were also listed as "significant conditions contributing to death but not resulting in the underlying cause."

Learn how Kelly grappled with Brandon's ill health below... WATCH: Ke

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