Sypha Belnades (in Japan, Sypha Fernandez) is a witch that originally appeared in Castlevania III: Dracula's Curse. Some time before the beginning of the game in 1476, Sypha was defeated by Dracula and transformed into a stone statue. Trevor Belmont defeated the Cyclops guarding her, and as a result freed her from her curse. She then accompanied Trevor on his journey to stop Dracula.
Following Dracula's defeat, Sypha eventually married Trevor, passing on her bloodline's power to future Belmonts such as Juste. Later magicians of the Belnades bloodline include Carrie Fernandez, Camilla Fernandez, Charlotte Aulin and Yoko Belnades.
Sypha was originally intended to be included in the Nintendo 64 Castlevania. In the game, she would have been resurrected as an undead servant of Actrise, an evil witch and servant of Dracula. At some point during development, these plans changed, and this undead character became Camilla Fernandez; a descendant of the Belnades family that fell in Dracula's castle and was transformed into Actrise's vampire servant. Camilla's theme on the game's official soundtrack, however, is named "Sypha".
Sypha appears as a playable character in Castlevania Judgment. Her profile in the game's manual describes her as a "tough, strong-willed witch who uses fire, lightning, and ice magic. Affiliated with the church, Sypha hides her nature by wearing priestly robes."
In Judgment, Sypha is pulled into the time rift that is the game's setting at some point prior to the events of Castlevania III and her petrification. She therefore has yet to meet Trevor and is not aware of who he is when they meet each other within the rift. However, Trevor, who comes from a period in time after the events of Castlevania III and who in his present has married Sypha, recognizes her.