Popsugar Celebrity The Royals Kate Middleton at Imperial War Museum in London October 2018 The Special Surprise the Duchess of Cambridge Received During Her Visit to the Imperial War Museum 1 November 2018 by Kelsie Gibson First Published: 31 October 2018 Image Source: Getty / TOLGA AKMEN It must be our lucky week, because Kate Middleton just stepped out for another royal appearance. After showing off her sporty side during a Coach Core event with Prince William on Tuesday, the mother of three made a special visit to the Imperial War Museum in London on Wednesday. The duchess looked absolutely stunning in a royal blue dress as she mingled with the director of the museum outside. Inside, Kate was given a special surprise as she viewed letters about three brothers of her great-grandmother, all of whom fought and died in World War I. Kate's great-grandmother, Olive, worked as a nurse during the war and corresponded with her brothers, Francis, Maurice, and Lionel, during their time in the trenches. See more gorgeous photos from her outing ahead. Related: Kate Middleton's Most Memorable Moments From 2018 — So Far! Image Source: Getty / TOLGA AKMEN 1 / 15 Image Source: Getty / WPA Pool 2 / 15 Image Source: Getty / TOLGA AKMEN 3 / 15 Image Source: Getty / TOLGA AKMEN 4 / 15 Image Source: Getty / Neil Mockford 5 / 15 Image Source: Getty / TOLGA AKMEN 6 / 15 Image Source: Getty / WPA Pool 7 / 15 Image Source: Getty / TOLGA AKMEN 8 / 15 Image Source: Getty / WPA Pool 9 / 15 Image Source: Getty / Tristan Fewings 10 / 15 Image Source: Getty / WPA Pool 11 / 15 Image Source: Getty / TOLGA AKMEN 12 / 15 Image Source: Getty / Tristan Fewings 13 / 15 Image Source: Getty / Neil Mockford 14 / 15 Image Source: Getty / TOLGA AKMEN 15 / 15 The RoyalsThe British RoyalsKate Middleton