Kate Middleton dazzles in blue sheath dress while attending her second engagement this week

Ahead of Armistice Day, Duchess Kate visited London's Imperial War Museum. As a Royal, she didn’t dress up for Halloween but wore a stunning blue dress instead.

The Duchess had worn the dress before in 2016 during her Royal tour of Canada. She looked stunning for her second engagement of the week.

On Wednesday afternoon, Duchess Kate, 36, visited the Imperial War Museum (IWM) where she viewed letters relating to the three brothers of her great-grandmother. The men had fought and died in World War 1.

The three sons were Kate's great-great-grandfather Francis Martineau Lupton’s sons. They were killed at war within two years of each other.

For more on this story go to our Twitter account @amomama_usa. For the occasion, Kate repeated her 2016, Jenny Packham blue sheath dress.

She wore the dress with nude heels and a Mulberry England clutch in a nude shade. The Duchess accessorized with sapphire earrings and she wore a Women of The First World War Brooch from The Poppy Collection.

The Royal also had a chance to tour the First World War Galleries. There she viewed elements that related to her relatives' experience and met a fellow descendant of a First World War soldier.

She saw a number of documents that related to life on the Front which connected to her family. Kate also read a letter of condolence from the Keeper of the Privy Purse at Buckingham Palace.

The letters were part of IWM’s Documents Archive. The three sons she was related to were Maurice, who died in 1915 aged 28, Lionel, who died in 1916 aged 24, and Francis, who was killed in 1917 aged 31.

The previous day, Kate went to the Basildon Sporting Village in Essex with her husband Prince William. There they learned about the sports activities by Coach Core that were taking place in the community.

For this event, the Duchess wore a gray Smythe blazer, a black polo neck sweater, and black skinny jeans. She kept warm in Russell & Bromley Aquatalia 'Fallon' Chelsea boots.

While there, Kate joined the indoor tennis fun in heels with a group of youngsters. When she met Royal fans, one named Janet Emery gave her a warm hug.

The Duchess was pleased and said:

"Thank you very much. Hugs are very important. I keep saying that to my children."