Melissa is a fictional good sorceress in the Matter of France. She is said to have been an apprentice of Merlin and guards his tomb, though she does not appear in older stories about him. She rescues Astolfo from Alcina and returns him to normal.
In Orlando Furioso, she is instrumental in the love affair of Ruggiero and Bradamante, who she is determined will one day marry. Whenever their relationship is threatened, she brings them back together. Melissa conjures Ruggiero and Bradamante's descendants and foretells their futures. When Ruggiero has fallen victim to the enchantments of Alcina, she comes to his rescue by restoring his memory of his love for Bradamante, and releasing him from the spell which held him captive on Alcina's Isle. Later, Ruggiero loses a combat to determine who shall win the hand of Bradamante; despondent, he goes into the woods to starve himself to death. Melissa hears of his plight and reveals the truth to him: that he had lost in combat not to his rival, but to Bradamante herself; therefore, there is no reason their wedding cannot proceed.
The 16th-century Italian poet Ludovico Ariosto used the name "Melissa" for a good fairy (the good sorceress and prophetess who lived in Merlin's cave) in his poem Orlando Furioso. The following is an ode to Melissa's birthday by Thomas Blacklock, a Scottish poet from the late 18th century.
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