Princess:

Lucy Heartfilia, the jewel of the renowned Heartfilia family, was a princess. A kind hearted princess that was locked within the Heartphilia mansion, safe and sound, as all jewels should be kept. Natsu Dragoneel, otherwise known as Salamander, found himself intrigued by "the girl in the window". He passed by the Heartfilia mansion almost everyday with hopes of seeing that same girl, in the window, who never seemed to leave that house. When curiosity finally seizes control of him, he climbs a tree by her special window on an icy winter's day, just to meet the Heartfilia princess, who had always been waiting.

A Minatu The Terrible Book, Link In Bio