Madrid, SPAIN - Princess Leonor of Spain, Princess of Asturias celebrates her 17th birthday on Monday the 31st of October. *UK Clients - Pictures Containing Children Please Pixelate Face Prior To Publication*,Image: 734242920, License: Rights-managed, Restrictions: RIGHTS: WORLDWIDE EXCEPT IN GERMANY, NETHERLANDS, Model Release: no, Pictured: Princess Leonor of Spain, Princess of Asturias