what did he contribute to the welfare of his nation?
His conquest brought the kingdom into closer contact with France and forged ties between France and England that lasted throughout the Middle Ages.
William the Conqueror
The Conquest brought the kingdom into closer contact with France and forged ties between France and England that lasted throughout the Middle Ages. 
where did the queen's jewels come from Tower of London what precious stones were used to make these crown jewels? A sword, brooch, ceremonial shield, and decorated bronze crown with a single arch what were the base metals used to make these crowns? Crosses pattée and fleurs-de-lis what are the names of the objects that are categorized among these crown jewels of that region? The regalia and vestments where will you find these objects today? UNANSWERABLE what are the names of the aristocrats who wore these regal pieces? Edward the Confessor, William the Conqueror, Henry III who is the first person mentioned? Was among the last Anglo-Saxon kings of England. Usually considered the last king of the House of Wessex what did he contribute to the glory of his country? He restored the rule of the House of Wessex after the period of Danish rule since Cnut conquered England in 1016. who is that second person mentioned in the list of aristocrats? Was the first Norman King of England, reigning from 1066 until his death in 1087.
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William the Conqueror [SEP] Legacy
The impact on England of William's conquest was profound; changes in the Church, aristocracy, culture, and language of the country have persisted into modern times. The Conquest brought the kingdom into closer contact with France and forged ties between France and England that lasted throughout the Middle Ages. Another consequence of William's invasion was the sundering of the formerly close ties between England and Scandinavia. William's government blended elements of the English and Norman systems into a new one that laid the foundations of the later medieval English kingdom. How abrupt and far-reaching the changes were, is still a matter of debate among historians, with some such as Richard Southern claiming that the Conquest was the single most radical change in European history between the Fall of Rome and the 20th century.