Queen of Equestria

Queen of Equestria is the highest title in the post-Reign of the Royal Sisters Equestria. So far, the only known queen has been Twilight Sparkle, who had previously ruled as the Princess of Friendship. Although Twilight was told she would inherent the title before the formation of the Legion of Doom, she ultimately didn't inherent the title until the violent Apocalypse, in which the aforementioned Legion very nearly took over all of Equestria. After her final coronation, Twilight's first known act as queen was to organize an expedition into Farasi, the country of the Zebra.

Queen Twilight Sparkle and the Council of Friendship