ROYAL HIGHNESS

any person who is a member of a royal family; title given to members of a royal family; title that was used before 1917 designating any family member (such as brother, sister, child, grandchild, aunt or uncle) who belonged to the male descendant of the royal family (England); title used since 1917 designating child or grandchild of the monarch (England); any person who is given this title by Royal family (England)