Moryana
Moryana (Russian: Моря́на, pronounced [mɐˈrʲanə]) is a female sea spirit in Slavic folklore, possibly a goddess. Moryana was a sea vodyanitsa and daughter of the Morskoy Tsar, and also, according to some beliefs, she ruled the winds. Sometimes the moryany/moryanki (plural; Russian: моряны, морянки; Polish: moriany) were said to be numerous spirits of the sea and a marine kind of rusalki, which posed a great threat to ships, but usually Moryana was represented as a single entity. Due to the consonance of her name with the name of the goddess Marena, Moryana was sometimes identified with her and was called the goddess of death.