In days gone by there was a King who had three sons. When his sons came of age the King called them to him and said, "My dear lads, I want you to get married so that I may see your little ones, my grand-children, before I die."
And his sons replied, "Very well, Father, give us your blessing. Who do you want us to marry?"
"Each of you must take an arrow, go out into the green meadow and shoot it. Where the arrows fall, there shall your destiny be."
So the sons bowed to their father, and each of them took an arrow and went out into the green meadow, where they drew their bows and let fly their arrows.
The arrow of the eldest son fell in the courtyard of a nobleman, and the nobleman's daughter picked it up. The arrow of the middle son fell in the yard of a merchant, and the merchant's daughter picked it up. But the arrow of the youngest son, Prince Ivan, flew up and away he knew not where. He walked on and on in search of it, and at last he came to a marsh, where what should he see but a frog sitting on a leaf with the arrow in its mouth. Prince Ivan said to it, "Frog, frog, give me back my arrow."
And the frog replied, "Marry me!"
"How can I marry a frog?"
"Marry me, for it is your destiny."