Hircine

Hircine is a Daedric Prince whose sphere is the Hunt, and is the creator of lycanthropes. He is the master of Ulthorn the Hound and his Houndsmen, granting them lycanthropy so they may overtake Malabal Tor. The Hunting Grounds are his realm of Oblivion, and the Huntsmen are his Daedric soldiers. He appears within the March of Sacrifices, hosting the Great Hunt for competitors hunting the indrik Tarcyr.

Source: uesp.net.