The creator of the Marvel universe, Stan Lee, died of heart and respiratory failure TMZ reports.

Lee’s death certificate lists heart failure and breathing issues as his cause of death. Additionally, it states that he suffered aspiration pneumonia which means he inhale food, stomach acid or saliva into his lungs.

Stan has been battling several illnesses including pneumonia and vision issues. He died Monday, November 12 at 9:17 AM at Cedars-Sinai Medical Center in Los Angeles.

Stan Lee was cremated and his ashes were given to his daughter.

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