Lore:Vigil of Stendarr
The Vigil of Stendarr is an order of paladins devoted to the extermination of Daedra in Tamriel, which was created shortly after the Oblivion Crisis. Each provincial chapter is led by a Keeper of the Vigil. In addition to Daedra, the Vigil also hunts vampires, werewolves, and necromancers, which they see as abominations. The Skyrim chapter suffered heavy losses during a vampire attack by the Volkihar, and their main base of operations in Skyrim, known as the Hall of the Vigilant, was completely destroyed.
The reformed Dawnguard began as a splinter group of the Skyrim chapter.