* Feudal system: William introduced the feudal system to England, which was a system of land tenure based on loyalty and military service. He granted land to his supporters in return for their loyalty and military service, and he also required them to provide him with financial assistance when necessary.
* Royal administration: William established a strong royal administration to govern England. He appointed sheriffs to each county to enforce the law and collect taxes, and he also created a system of royal courts to hear cases and settle disputes.
* Harsh laws: William enacted harsh laws to maintain control over the Saxons. He introduced the death penalty for a wide range of crimes, and he also required all Saxons to swear an oath of allegiance to him.
* Cultural assimilation: William encouraged the assimilation of the Saxons into Norman culture. He promoted the use of the French language and customs, and he also encouraged intermarriage between Normans and Saxons.