The Princess and the Three Knights

The first knight stopped his horse exactly one foot from the edge of the cliff. The villagers marveled at the feat and clapped for the knight...
Measurements were taken, and indeed, the second knight had brought his steed six inches from the edge of the cliff...
As the townspeople settled down, the king turned to the third knight. "So tell me, young knight, exactly how close to the cliff can you bring the princess?"
The villagers held their breath waiting for his answer.
For a long time, the third knight looked deep into the eyes of the princess.  Then he turned back to the king.  "Your majesty, I love the princess.  She is more precious to me than anything in the kingdom." He lowered his reins.  "I wouldn't take her anywhere near that cliff."
"THAT," the king shouted, "is the right answer!"
  
Last year, Karen Kingsbury wrote a charming princess story based off of I Cor. 13: 4, 7: "Love is patient, love is kind.  It does not envy, it does not boast, it is not proud.  It always protects, always trust, always hopes, always perseveres."  The Princess and the Three Knights (published by Zonderkids) demonstrates to readers that the best beauty lies within a person's heart.

When the king begins his search for a groom for his fair princess, the knights from all over the world come to compete.  When there are only three left, the king challenges them to one last test: how far can they take the princess on horseback toward a cliff?  Two of the knights have ulterior motives, but one of the knight's love is pure and true.  Besides doing a great job of speaking indirectly about sexual purity, The Princess and the Three Knights also sends a strong message that love always protects.

What is your favorite princess story and why?