Kate Middleton, Prince William, Prince Harry Honor Fallen Soldiers at Somber Memorial Service

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The royals kept dry holding up umbrellas during the outdoor ceremony on Friday.

On Friday morning, the British royal family visited Thiepval, France, to honor the fallen from one of World War I’s bloodiest battles. Kate Middleton, Prince William, Prince Harry, Prince Charles, and Duchess Camilla all attended the Commemoration of the Centenary of the Battle of the Somme on the 100 year anniversary.

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More than one million men were wounded or killed during the Battle of Somme, which was fought by the French and British armies against the German Empire from July 1 to Nov. 18, 1916.

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At the commemorative ceremony, actors Charles Dance and Harry Potter star Isaac Rosenberg read poems and passages dedicated to the soldiers who lost their lives. And Prime Minister David Cameron, who recently resigned in the wake of the Brexit vote, gave a speech.

For the somber occasion, Middleton wore a stunning cream and black matching skirt and top with a brocade print. She paired the look with a black fascinator and black pumps and wore a symbolic red poppy and cornflower pin on her chest.

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When it began raining, her husband and brother-in-law held up clear umbrellas to keep the Duchess of Cambridge covered.

The royals honored the somber occasion on Thursday night as well, attending a vigil held in France where Prince Harry read W.W.I. poems.