Source A: Excerpt from the Domesday Book (1086)

'William the Conqueror granted land to his supporters, who in turn had to serve him militarily and provide him with resources. This system ensured that William could control the land and the people.'

Provenance: A record compiled by William’s officials to assess landholdings and resources after the Norman Conquest.

Source B: Excerpt from a Norman knight's description of his duties

'As a knight, I hold land directly from the king, and in return, I serve him in battle and provide him with soldiers and resources.'

Provenance: A medieval knight’s account of his relationship with the king.

Source C: A historian's view

'The Norman system of land distribution and military obligation created a new social hierarchy that replaced the Anglo-Saxon ways of governance.'

Provenance: A modern historian’s analysis of Norman impact on English society.

Source D: A modern summary

'The Norman conquest established a new order in England, based on land, loyalty, and military service, which influenced English governance for centuries.'

Provenance: A contemporary history textbook summarizing Norman impact.