Merdan

In the mirror universe, Merdan was a $𝜇$ gul in the Klingon-Cardassian Alliance. In 2295, he commanded a fleet that attempted to subjugate the $𝜇$s as part of the conquest of the Terran Republic. The Andorians resisted subjugation, and Merdan's fleet had to obliterate most of the planet. (TOS novel: The Sorrows of Empire)