Princess Diana's Final Resting Place Undergoing Major Renovations. The place where Princess Diana was laid to rest is undergoing some major renovations. According to the Althorp Estate, the island where the late Princess of Wales is buried is in need of an extensive redesign. The upgrades will be overseen by Diana's brother, Charles Spencer, and his wife, Karen, and are expected to be completed in August 2017—20 years after the Princess died.