Nobility is a special type of social class that used to exist in many countries. People who were part of the nobility were usually wealthy and powerful, and because of that, they had a higher status than other people. Nobles often had bigger homes, fancy clothes, and sometimes even castles to live in. They could also pass down their power and wealth to their children and grandchildren, so the noble families would stay wealthy and powerful for generations. Nobles also held important positions in their governments, and they sometimes even led armies and fought in wars.