During the Middle Ages, the counts of Blois were among the most powerful vassals of the King of France. This title of nobility seems to have been created in 832 by Emperor Louis the Pious for William, the youngest son of Adrian, Count of Orléans.
During the Middle Ages, the counts of Blois were among the most powerful vassals of the King of France. This title of nobility seems to have been created in 832 by Emperor Louis the Pious for William, the youngest son of Adrian, Count of Orléans.
Source: Wikipedia "Count of Blois" · CC BY-SA 4.0
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