Squirearchy is a term used to describe a system of government in which a squire, or a nobleman, is the ruler. This type of government was common in medieval Europe and was based on the feudal system. Squirearchy is a hierarchical system in which the squire is at the top, followed by knights, vassals, and peasants. The squire had the power to make laws, collect taxes, and dispense justice. Squirearchy was an important part of the social structure of medieval Europe and was a major factor in the development of the modern nation-state.