Their visit to Northern Ireland has kept Prince William and the Duchess of Cambridge, née Kate Middleton, very busy, with a jam-packed agenda. A few hours ago we saw the mother of three showing off on the soccer field and then stepping into a canoe - reviving the skills she picked up at university as a part of their rowing team - shortly thereafter, Kate traded her sneakers for heels and slipped on an elegant dress to attend a party in her honor at the Empire Music Hall in Belfast.