The iconic actress died on Dec. 18 at 99 years old.
A week after she died, Zsa Zsa Gabor's official cause of death has been revealed.
The iconic actress died of a heart attack, according to her death certificate, obtained by ET on Tuesday.
WATCH: Zsa Zsa Gabor Dies at 99
Gabor's death certificate lists that she suffered a stroke, or cerebrovascular accident, before falling into a coma and dying of cardiopulmonary arrest at Ronald Reagan UCLA Medical Center. Other contributing factors to her death were coronary artery disease and cerebral vascular disease.
The 99-year-old star suffered several health issues in the final years of her life. She was in a coma for several days after a car accident in 2002 and survived strokes several years later in 2005 and 2007. In 2011, she had her right leg amputated, and in February 2016, suffered a feeding tube-related lung infection.
Gabor died on Dec. 18. Her husband, Frederic Prinz von Anhalt, told ET at the time that he was by her side at home, and "her heart just stopped."
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Gabor had been married to von Anhalt, 72, since 1986, though she had many famous romances throughout her life.
See more on the many loves of Gabor in the video below.