All three brides called on top designers to dress them for their big days.
Princess Anne's son Peter Phillips married Autumn Kelly in 2008, and here's why The Princess Royal had a say in what the bride wore - including her loaned tiara ...
Both royals were at the wedding of Peter Phillips and Harriet Sperling on June 6.
Princess Eugenie and Princess Beatrice made a return to the royal spotlight on Saturday, stepping out to celebrate the wedding of their eldest cousin, Peter Phillips, and his bride, Harriet Sperling.