How a Royal fell in love with a Commoner

Lady Sarah a 18 year old Princess met a boy who says he loved her. How could a Royal Princess fall in love with a Comoner. How would the royal court feel about a heir to the Italian and English throne take the news. Lady Sarah goes to Holland to met the boy she loves, a boy who she has never met. Will it be more? But if push comes to shove, will her Royal Highness give up her title, and her place in line to these royal thrones? Will she choose love, over crown and counrty?