The Norman Conquest of 1066 introduced which new system to England?

The Norman Conquest of 1066 led to the introduction of a new landhold system in England, fundamentally altering the existing feudal structure. After the conquest, William the Conqueror instituted a system known as feudalism, which redistributed land to Norman lords and knights in exchange for military service. This system was characterized by the division of land into large estates granted to vassals who would manage it in return for loyalty and service to the king.

Under this new landhold system, the king had ultimate ownership of all land, which was then parceled out to his most trusted supporters, creating a hierarchical structure of land ownership. This significantly changed land tenure in England, as the previous Anglo-Saxon system of landholding was disrupted. Consequently, this new structure influenced various aspects of society, including governance, loyalty, and obligations.

While taxation, economic structure, and parliamentary systems may have evolved in response to the changes initiated by the Norman Conquest, the immediate and defining change was the establishment of this new landhold system, which established the foundation for land ownership and governance in medieval England.