Idomeneo.

Idomeneus, King of Crete, one of the great heroes during the total destruction of the famous city of Troy was sailing back to his realm when a terrible storm broke loose near the city of Sidon. The storm was of such violence that in his fear Idomeneus made a solemn promise to Neptune, God of the Seas, to sacrifice the first person -no matter who it be- that he would meet on the shore if he and his people would only get there safely.