Prince Jacques also was given his own monogrammed jersey from Monaco's soccer team during the celebration party.

Photo: Eric Mathon / Prince Palace

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After her busy weekend being an unofficial maid of honor to her younger sister Pippa, Kate was back in London for the start of the Chelsea Flower Show on May 22. In a green flora Rochas dress, the Duchess viewed the variety of flowers including the "William and Catherine Rose" named in 2012 for their royal wedding.

Photo: Instagram/@kensingtonroyal

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Duchess Kate joins the Queen and royal family at Chelsea Flower Show

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