Who is The Narcheska from The Golden Fool and what is their importance?

The Narcheska is the Outislander princess. She is betrothed to Dutiful, but she does not like him. She challenges Dutiful to slay a dragon for her and she will marry him. She will accompany Dutiful on this dragon quest. She comes from a matriarchal society. She is close to her uncle Peottre. She is only 11 years-old, but she is beautiful and powerful. She has beautiful and elaborate tattoos all over her back. The tattoos burn her at times.