A warship that belonged to the Sith Empire fought in the Battle of Corellia in the year 3640 BBY. This occurred during the Galactic War against the Galactic Republic, and the vessel sustained extensive damage in the conflict. As a result, it collided with a high-rise tower located within Corellia's capital, Coronet City, causing multiple levels to give way and nearly bringing the entire structure down.
The initial reference to the Imperial warship can be found within the Codex entry for the Beharen Droid Factory. This information is contained within Star Wars: The Old Republic, a video game that was launched by BioWare back in 2011.