Once upon a time, there was a King.
The King had been married to his Queen for three years, when the Queen gave birth to a Princess.
Sixteen years later, the King was worried about his daughter.
The Princess was very beautiful, and he did not want her to meet the wrong sort of suitor.
So he built a tall tower within the Castle Keep, where his daughter was kept in privacy, away from prying eyes and undesirable peasants.
Even so, the Princess was restless and would often stand at the window looking out to the town and beyond.