First let me say, I am getting this information from a feature by "Play Magazine" where they did special on Castlevania, where they interviewed the artist and lead programmer for CVIV. This was for Innocence for the PS2. The article was.
I would list spoilers but everybody seems to know what I am talking about already, so I removed that.
http://gamefanmag.com/Alucard is Kid Dracula, so says that of SOTN zany timeline that takes place -10000 years.
Sonya appears beats the count, makes a baby with Alucard
Teavor ( here it comes ) is his son, between him an Sonya. Alucard, a pirate, and sorceress all help him fight Dracula.
one hundred years pass by
Christopher Belmont appears.
one hundred years pass by
Simon Belmont, blah blah
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Mirror of faith timeline.
there is no Sonya, Alucard, or kid dracula.
17 ( that is right only 17 ) years pass by,
Treavor fights Dracula and fails.
There is no Christopher Belmont.
50 years later.
Simon and Alucard fight Dracula
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
To compare timelines
Chirstopher, and Sonya never exsist.
Castlevania III never happen, because Trevor never had friends on a quest.
Castlevania II never occured at all.
This game also was suppose to explain the curse, but they never explained anything at all. All they explained was a magic mirror, which I am guessing is the doorway of some sort.