What were the key social hierarchies in Renaissance Europe?

The division between educated and uneducated people was only one of many social hierarchies evident in the Renaissance. Every society has social hierarchies; in ancient Rome, for example, there were patricians and plebeians. Such hierarchies are to some degree descriptions of social reality, but they are also idealizations — that is, they describe how people imagined their society to be, without all the messy reality of social-climbing plebeians or groups that did not fit the standard categories. Social hierarchies in the Renaissance were built on those of the Middle Ages that divided nobles from commoners, but they also developed new concepts that contributed to modern social hierarchies, such as those of race, class, and gender.