The basic rundown of the european forms of nobility starting with the lowest and moving up is:
Most times you may hear the name "Lord" Smith, or "Lady" Scarlet, which may refer to a Baron, Viscount, Earl, or Duke. Such as, Lord Tower, Arch-Duke of Sacramento, for example, or Lady Lorraine, Baroness of Fairfield. Wikipedia or a good dictionary will help you research each title. What I did years ago is make a list and write down the definition for each in heirarchal order until I memorized them.
Whats really cool is that different countries have different names for the titles to add a little spice. Hope this helps.
-Lord Tower of the Order of the Iron Will, Arch-Duke of Sacramento
Power corrupts, and absolute power corrupts absolutely!
Despise learning and make everyone pay for your ignorance.
The water that floats a ship is the same that sinks it.
My LEGO figures keep me from being evil, drat!!