When was the female corpse of Mawangdui unearthed? What were the names of people in which dynasty?

The female corpse of Mawangdui is Mrs. Xin Zhui, Prime Minister of Changsha in the Western Han Dynasty. She died in BC 186, about 50 years old. 1972 tomb unearthed, the whole body is moist, the skin is covered completely, the lines of fingers and toes are clear, and the muscles are elastic. This is the first time in the world to find a wet corpse with a long history. Now, Mrs. Xin Zhui's body is preserved by the Hunan Provincial Museum in a big coffin built in imitation of the original state when it was unearthed that year.

Here are some photos from the website, including photos of Mrs. Xin Zhui at different ages restored by computer.