Irish Tales 3 : The Children of Lir

Long ago in ancient, there Ireland lived a King and ruler of sea called Lir. He had a beautiful wife, called Eva, who gave him four children – eldest son Aodh, a daughter called Fionnula and twin boys, Fiachra and Conn. When children were young, their mother Eva died. Lir and children were very sad, and King wanted a new mother for his young sons and daughter, so he married Eva’s sister Aoife who, it was said, possessed magical powers. Aoife was jealous of the King's Children..."

Cursed from Children to Swans.