Not the One from Carthage

Dido was pretty cool. In Graeco-Roman mythology, she founded the city of Carthage. It was really clever how she did it, too. It involved geometry and ox hide and... well, she got a whole city. She was queen until the man she loved had to leave. When she saw his ship sailing away, she cursed him, then killed herself. I think she jumped off of... something. Her castle? Anyway, she didn't write the song "White Flag." That wasn't Dido; it was Dido.