The Vinculum is the artificial love and loyalty spawned by feeding from the same vampire three times. Part of the Kindred's ill regard for tasting the blood of other vampires is the Vinculum. Those Kindred who consume the blood of another single vampire three times become subjected to a unique state of emotional control. This Vinculum creates a powerful but artificial love for the vampire from whom three draughts are taken. He who is bound in such a way is known as the thrall, while the vampire to whom a thrall is bound is called the regnant, or domitor.