Hidden sect

so, as a kind of side story that would be in my book of vampires that I'm never going to write... there is a small, hidden sect of rather ancient, very powerful vampires that do not believe in the ancients. They worship the true ancient, and know that she is female. They are actually powerful enough that their leaders can also create more vampires, and they also make female vampires, but not very often. Every once in a while they try to rebel, and get almost completely obliterated, then build themselves up again in total secret.