Vampiris Keep

Long ago, during the Great War, there was a faction of vampires, called the Order of Vampiris, who fought alone. They were rather dominant, thanks to their king and queen; Red and Sangrix, respectively. Red was the overlord that controlled most of the Order of Vampiris, but Sangrix didn't like how much power he gave himself, so she killed him, and took the glory for herself. She did a fine job controlling the order, but eventually she was killed while attempting to raid one of the Arch Mage's vaults.

The Keeps that they built still exist in the world, and house vampires, and at the end of each keep, is a Vampiric Guard, a boss you must kill in order to earn the true loot of the keep.