Taking on her first official royal responsibilities, the Duchess of Cambridge was spotted stepping out for the National Portrait Gallery in London, England on Wednesday evening, February 8, 2012. Being known as one of the world’s most photographed women, Kate Middleton shined in gray tweed, A-line coat dress at the event. Kate’s visit to the gallery came after she had agreed to pose for a portrait requested by the gallery. This is the first time Kate carried out a royal duty without her husband. Let’s see how she looks like during her visit to the National Portrait Gallery through pictures as following: