Medb* Medb, also known as Mab or Maeve, is the magnificent Warrior Queen of Faeries. According to Irish legend, as in the stories of Gwenhwyfar, no King could reign in this world unless he was married to this Queen of the Otherworld. In other words the King must have one foot in this world and one in the other. Her fierce invasion of Ulster precipitated her downfall. In revenge for this act, she was slain by the single slingshot of Forbai, son of the Ulster King, while she was bathing in a pool.