Kate Middleton, the Duchess of Cambridge, has been seen sharing a public engagement with two survivors of the Holocaust in the beautiful Lake District Tuesday.The royal mum-of-three was all smiles as she laughed and got to know two of the famous “Windermere Children” during a boat trip around Lake Windermere.The 39 year old royal chose to wear a tweed belted jacket for the occasion, pairing it with a beige coloured sweater underneath and plain black trousers.