Commoner… that was a term used to define anyone who did not have the privilege of being born into nobility. However, the term wasn't always present—it only came into use after the Peasant Revolution.
Once, anyone who wasn't a noble was classified as a peasant. Naturally, peasants were little more than slaves before the revolution. Peasants could not own land or any type of property. They themselves were the belongings of the lord of the land they were born in. They farmed the land, and the lords took everything, leaving them starving. Peasants were forbidden from learning magic, and they were not allowed to read or write without their lord's permission.