- "¡Ay Carmela!" is a Republican song from the Spanish Civil War. - Carmela is the titular character in the 1990 Spanish film "¡Ay Carmela!" The character and movie are named after the song.
A nickname for this--as well as related names--is "Carmilla", from Sheridan Le Fanu's vampire story by the same name. She was the vampire and had lesbian tendencies, though this was the 19th century and Le Fanu was a man. It's the tale Bram Stoker's "Dracula" was inspired by.