Breaking royal fashion rules: Kate Middleton's St. Patrick's Day look

Kate and William went to Aldershot to spend St. Patrick's Day with the Irish Guards.

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William said goodbye, and Kate said that it was an honor to become Colonel Catherine.

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She wore teal instead of green to match the Irish Guards' plumes.

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It was Kate's second outing with the Irish Guards since becoming Colonel.

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William is now with the Welsh Guards.

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