Arch-Curate Vyrthur

Arch-Curate Vrythur is one of the antagonists appearing in The Elder Scrolls V: Dawnguard when supporting the Dawnguard.

He is a Snow Elf and a Vampire, brother to Knight-Paladin Gelebor.

Quests
Touching the Sky:

In order to obtain Auriel's Bow, the Dragonborn is tasked to fill the Initiate's Ewer at five of Auriel's Wayshrines, in order to unlock the Inner Sanctum where Vrythur awaits with the bow in his posession.

Inventory
Arch-Curate Vrythur wears one of the only known sets of Ancient Falmer Armor (the other being Knight-Paladin Gelebor). It is easily obtainable since it can be looted off his dead body.