Circe

Circe is a major antagonist character in the world of Coryphiel, primarily operating in Erdannia.
Circe has previously gone under the names Cecelia Rouge, Lady Mordenaar, and Princess. She is currently operating under the name Circe Rosenclair, War Minister of Erradan, and is arguably the most politically powerful person in the Erddanian empire. She is also the CEO of the Legion Company, who manufacture Clockworks for the Clockwork Legion, which she is Supreme Commander of.
Circe possesses several magical artefacts which grant her unique powers, including the ability to control Clockwork Golems and Clockwork Augments. She has also been known to use decoy versions of herself to escape dangerous situations, and is extremely adept at disguise.
Acting through the assassin Exitus, Circe secretly manipulated events in Erradan in her favour, to destabalise the nation, throw doubt onto the current ruling government, and eventually kill the King himself, causing a war of succession. She also used the assassin Sanguine to eliminate many influential politicians in Erradan, and destroy the empire's truce with the Zulaca cities. Through manipulating the Cabal, she was able to elevate herself into the position of War Minister, and coerce the ministry into granting her emergency powers.