At the top of the class structure is the emperor and his immediate family. The emperor was also called the Sapa Inca. He was believed to be descended from the sun god, Inti. Everything in the entire empire belonged to the emperor. The Sapa Inca was carried everywhere on a golden litter by his servants. The Sapa Inca could have very many wives. One would be the "primary" wife, or Coya. To ensure purity of the royal blood, the Coya would be a full sister, and the Sapa Inca heir would be chosen from their children.
Nobles
Right below the emperor is the nobles. There are three levels of nobles. The highest is the Capac Incas. Capac Incas were considered relatives of the Sapa Inca. The role of the Capac Incas was to control the land and valuable resources of the empire. The middle level nobles are called the Hahua Incas. These nobles were not related to the Sapa Inca but are of high rank. these people had a little less control but pretty much the same role as the Capac Incas. Finally at the bottom was the Curaca Incas. These nobles governed groups of conquered people. They had various jobs. Some made sure the people followed inca customs and laws. Many collected taxes from the people.
Commoners
The bottom member of the Inca class structure is the commoners. Most worked as farmers and herders. Incas didn't practice slavery, but commoners were required to support the government. Men would do jobs like building roads while women would do things like weave clothes. Inca farmers grew crops like peppers, squash, peanuts, beans, more than 20 types of corn, and more than 200 types of potato. The potato, being able to survive heavy frosts at altitudes as high as 15,000 ft. above sea level, was their most important crop.