Morgen (mythological creature)
（重定向自Morgens）
Morgens, morgans or mari-morgans are Welsh and Breton water spirits that drown men. They may lure men to their death by their own sylphic beauty, or with glimpses of underwater gardens with buildings of gold or crystal. They are also blamed for heavy flooding that destroys crops or villages. In the story of the drowning of Ys, a city in Brittany, the king's daughter Dahut is the cause, and she becomes a sea morgen.