What was the result of the invasion led by william the conqueror?

1) (re-)distribution of land (to extremely big extent), 2) arrival of new (not anglo-saxon) aristocracy, 3) new (Norman/French) aristocracy, 4) French was introduced as a language of the court and aristocracy, 5) William the Conqueror started building keeps and castles and his successors continues with it as well, 6) introduction of new royal dynasty called "Norman dynasty"

Explanation: William the Conqueror founded Norman dynasty which was followed by Plantagenet dynasty. Identity of Norman (and some Plantagenet) kings was still French, i.e. they were frequently burried in Frańce and not in Westminster Abbey.

attacks by the seljuk. a devastating blow to the entire byzantine world was dealt by christian crusaders from the west. the venetians were eager to destroy byzantine power and offered the crusaders money, ships, and part of the spoils of war.

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