Duke of St. Bishope

The Duke of St. Bishope is a title bestowed upon the Crown Prince of the United kingdom of Russia and Athens. Specifically the Kingdom of Bat Kingdom. The title is only bestowed upon the crown prince when he is married or has no siblings. For when no male heir is first in line, the title changes to Duchess. Also in times when the King is consort, the title of Duke of St. Bishope is bestowed upon him.