Principality

From MicroWiki

Principality is the term used to describe any nation, or division of a nation, ruled by a figure who styles themselves as Prince, Princess or very rarely as a variety of Princeps. Principalities can be sovereign, independant nations or they can be sub-divisions of larger Kingdoms or Empires. Both are common in the micronational world. Sometimes, a Principality is officially known as a Grand Duchy or Duchy, with the Prince adding the title of Grand Duke or Duke respectively to their list of styles.