|name = Lady Dai Xin Zhui
|age = 2,100 years old
|sex = Female
|status = married to Li Cang, ruler of the Han Imperial Flefdom of Dai
|culture = Western Han Dynasty
|dates = born ca. 213 BC, died 163 BC
|site = inside a hill
|location = Mawangdui, Changsha, Hunan, China }}
Xin Zhui, also known as Lady Dai, was born in ca. 213 BC and was married to Li Cang, the Marquis of Dai, during the Han Dynasty. It was not until 2,000 after her death, when her tomb was discovered inside a hill, that she became famous. Her airtight tomb revealed her lavish lifestyle - filled with more than 1,000 precious goods including fine fabrics, bizarre delicacies, a complete wardrobe of more than 100 silk garments, 182 pieces of lacquer ware and 162 carved wooden figures representing servants who would tend to her in the after world.
Lady Dai's body was preserved so well her internal organs were perfectly intact, including her brain and the Type-A blood in her veins. This allowed an autopsy to be completed, which concluded she died of a heart attack. It also provided evidence that she had other aliments and diseases such as diabetes, high blood pressure, high cholesterol, liver disease and gallstones. Her heart attack was most likely brought on by obesity, a lack of exercise and an over-indulgent diet.
Lady Dai's body was swaddled in 20 layers of silk and placed into 80 liters of an unknown liquid mildly acidic with some magnesium in it. Her body was then locked inside an airtight tomb, place 12 meters underground, locked inside four layers of coffins. The layers were put inside a compartment in the middle of a funnel shaped, clay lined, massive cypress burial vault. Around the vault was five tons of moisture absorbing charcoal. The top of the vault was sealed with an additional three feet of clay, on top of which were hard rammed pieces of earth reaching all the way to the surface of the shaft.
Archaeologists and pathologists have not yet determined all the factors behind her rare state of preservation, though they have a few clues.
Holloway, April. "The Enduring Mystery of The Lady of Dai Mummy." Ancient Origins. Ancient Origins, 19 Feb. 2014. Web. 09 Jan. 2017.
Ponic, Jason. "World's Best Preserved Mummies." Owlcation. Owlcation, 25 Oct. 2016. Web. 09 Jan. 2017.