I think that the title ‘Castlevania nocturne’ should be named as ‘Chateau’

Since there’s no castle in nocturne i mean castle is the place vampires resides and is main setting which the protagonists and vampire hunters eliminates them so i don’t think this title should be named as ‘Castlevania’ so it should be ‘Chateau Nocturne’ because its the only building of the vampires that were shown in both the series .