Sei Shōnagon
Fujiwara no Teishi, the first empress of Emperor Ichijo, was also known as a poet. She was thought as a beautiful and talented woman, by her servant Sei Shōnagon. On January 13th, 1001, she died in childbirth. Before her death, she wrote three poems in waka style to express her sorrow and love to the emperor and Sei Shōnagon. Teishi said that she would be entombed, rather than get cremated, so that she wrote that she will not become dust or cloud. The first one got selected into the poem collection Ogura Hyakunin Isshu.