In the mirror universe the ISS Enterprise-D was built by the remnant of the Terran Empire in secret after the Klingon-Cardassian Alliance reduced the Empire to their own home solar system. It was commanded by Jean-Luc Picard (mirror). (Star Trek: The Next Generation: "Mirror Broken")
The crew included William T. Riker (mirror) as first officer, Data (mirror) as second officer and operations officer, Natasha Yar (mirror) as chief of security, Beverly Crusher (mirror) as chief medical officer, Geordi La Forge (mirror) as chief engineer and Deanna Troi (mirror) as the ships councilor.
The Enterprise-D was the Terran Empire's only Galaxy-class starship.