CythereaGraye, heroine of ThomasHardy's "Desperate Remedies" (1871)
"I had seen her name on a bag at the station and wondered what she would be like – Cytherea! A lovely name, anyhow." [H. G. Wells, "Brynhild," 1937]
"The Embarkation for Cythera," a Rococo painting by Watteau
Possibly related to the French name Quitterie. Saint Quiteria is sometimes depicted as a sword-wielding guerrilla fighter.