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In page Mabel FitzRobert, Countess of Gloucester:

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Mabel FitzRobert, Countess of Gloucester (c. 1100 – 29 September 1157[citation needed]) was an Anglo-Norman noblewoman, and a wealthy heiress who brought the lordship of Gloucester, among other prestigious honours to her husband, Robert, 1st Earl of Gloucester upon their marriage. He was the illegitimate son of King Henry I of England.