Artoria Pendragon

Artoria Pendragon or more commonly known as King Arthur, was the King of Camelot and the leader of the Knights of the Round Table. Throughout her rein, Artoria hid her true identity and only a few knew her true gender. Despite this, Artoria led her people through many hardship until Mordred, her Bastard child became a member of the Round Table and eventually revolted against Artoria, resulting in the two death and the collapse of Camelot due to internal fighting.