Order of the Bloody Cup

The Order of the Bloody Cup is a Grail-aligned cult, dedicated to lust, hunger, feasting, blood, and birth. Its founders can promote the followers of the Grail aspect to its tenth rank (Cyprian). 
The cult focuses heavily on seduction- luring in the unwitting and weak of mind to use their vitality for their own ends. The problem with blood you see, is that it hides within unwilling packages.