Dud Lutzen

In Tibetan mythology, Gesar, the king of Ling, embarks upon military campaigns against the four enemies of the four directions, the first of which is against Dud Lutzen (bDud klu-btsan), the twelve-headed man eating dragon of the north. Lutzen's northern territory is guarded by three armies; one of enslaved gods, one of enslaved humans and the third of demons. Gesar defeats these armies and manages to persuade Lutzen's wife, the human Queen Dummo, to help him on his quest. After they succeed in defeating the twelve headed dragon, Dummo poisons Gesar and keeps him captive as her prisoner lover for six years.