Mayor Mare is a character in the side story Heroes. She is the current Mayor of Marefort, the title having been passed to her after the last mayor's death. She makes deals with the Crimson Hoof, using the city's ammunition cache as a method of paying them off.
The previous Mayor Mare was Silver Storm's Mother. She was killed when she tried to use her position to ignore demands from the Crimson Hoof for Starmetal Bullets.