Castle Keep
From the Castlevania Wiki, the Castlevania wiki
The Castle Keep is traditionally where Dracula awaits the hero, for the final battle, though there are usually slight differences between games, and the throne room itself is usually at the end of the stage and up a staircase, though in Rondo of Blood it is just the staircase and throne room. Also interesting is that the Keep is attached only to the staircase, and apart from that, floats in midair. The Clock Tower is generally the stage before this.
[edit] External links
http://www.vgmuseum.com/mrp/entrance4.htm
