In the mirror universe, the Sato Dynasty was the ruling family of the Terran Empire from 2155 to 2277. The line originated with Empress Sato I who took power in January 2155. It included Empress Sato II and Sato III, the last of the Sato Dynasty, who was overthrown by Grand Admiral Spock in 2277. (ENT - Mirror Universe novel: Age of the Empress; TOS - Mirror Universe novel: The Sorrows of Empire)