During the two-day festivities, the Argentine-born blonde wore a total of four outfits. The first, for a glittering state dinner on Monday evening, was a red Valentino flamenco-style gown. Taking to the balcony the next morning with her husband and three daughters, she shone in a satin number by Belgium designer Natan.
The investiture ceremony saw her don the most showstopping outfit - a cobalt blue floor-sweeping gown and matching cape created by Dutch designer Jan Taminiau. Making sure to fly the flag for Dutch designer, she called upon Jan for a second time to create the wine and cream lace dress that she wore for the river pageant and the dinner.
All four outfits were stunning, but which was your favourite? Place your vote below.
CLICK ON PHOTOS TO ENLARGE
We're sorry, the vote has now closed...