THe song, and its title, represents the two super-powered, holy bloodlines of Castlevania's Belmonts and Belnades families. You could say it's THEIR song.
This song has nothing to do with Konami, other than that I was inspired by their music, and also that I wrote it with their awesome games in mind. Hell, I even tested its Cv-ness factor, by playing Dracula XX in an emulator with all sound channels, except the SOUND channel, OFF. It goes REALLY well with Stage 2; the stage that originally had "Vampire Killer" as its BGM. I'd imagine it would also go well with Rondo's Stage 2A, seeing as how you're on bridges in both. The airiness of the strings is what makes it fit best with a big sky in the background. It's really cool, and I'm quite proud of it.