이이
Yi I loved his mother dearly, so when Shin Saimdang got sick, he went to the shrine where his maternal grandfather's spirit tablet was, and prayed for his mother for one hour every day. The family members who were searching for the missing Yi I were moved when they found the young child sincerely praying in hopes of his mother recovering. Despite his efforts, her illness got worse. Sin Saimdang died suddenly after moving to the Pyongan region. Shin Saimdang died on May 17, 1551, at the age of 46. As a result of her death, her son Yi I wandered about with questions about the cause of life and death.