Malkovian

In Vampire: the Requiem, the Malkovians are a bloodline of the Ventrue clan. They were founded by Anton Malkov, an inmate of England's Broadmoor Criminal Lunatic Asylum, and spread through his childe, Dr. James Griffith Hartleigh.

They are known as "Lunatics", an apt description. While Ventrue in general are more prone to derangement than other Kindred, Malkovians are Embraced with a derangement that is theirs for eterntiy. Moreover, this illness may flare up when an attempt to Dominate another fails.