Fans of the Duchess were quick to praise her and her husband.
One said: “Beautiful photograph of a lovely couple paying homage and respect of the fallen.”
Another wrote: “These two are making a great job and are so underestimated!”
“Always love to see the Earl and Countess,” one wrote.
Another said: “The Countess is so beautiful!”
Kate attended Remembrance Sunday ceremonies at the Cenotaph on Sunday.
Meghan Markle joined Prince Harry in LA at a cemetery to lay a wreath.
Kate Middleton also video called those who have lost loved ones in war.
The Duchess of Cambridge looked stunning in a white and black blouse for the touching event.
During the call the Duchess said: “It’s been a real honour to speak to all of you and I think I speak for the whole nation when I say just how proud you should be of your loved ones, and for the sacrifice and the bravery that they’ve shown.
“I’ll certainly be thinking of you this difficult week and will be for many years to come.”