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But Middleton was forced to attend the event without her husband-to-be because of his commitments as a search and rescue pilot.

She took part in the rehearsal with her future brother-in-law Prince Harry and her maid of honor, sister Pippa Middleton, as well as all of her bridesmaids and pageboys.

A Clarence House spokesman says, "We can confirm that Catherine Middleton and Prince Harry took part in a rehearsal at Westminster Abbey this morning."