Original sentence: Four reigning European royal houses traditionally awarded dukedoms to the sons and in some cases, the daughters, of their respective Sovereigns.In the United Kingdom, a royal duke is a duke who is a member of the British Royal Family, entitled to the style of Royal Highness
Edited sentence: A royal duke is a duke who is a member of the British Royal Family, entitled to the style of Royal Highness.Three other reigning European royal houses traditionally awarded dukedoms to the sons and in some cases, the daughters, of their respective Sovereigns