see more
LUXEMBOURG - MAY 11: Catherine, Duchess of Cambridge (third right) poses with (L-R) Princess Alexandra of Luxembourg, Princess Stephanie of Luxembourg, Henri, Grand Duke of Luxembourg, Maria Teresa, Grand Duchess of Luxembourg and Prince Guillaume of Luxembourg during a visit to the Grand Ducal Palace on May 11, 2017 in Luxembourg. The Duchess is participating in the official commemoration of the 1867 Treaty of London and will attend a series of engagements to celebrate the cultural and historic ties between the UK and Luxembourg. (Photo by Samir Hussein/WireImage)