See Prince Harry, Meghan, William, and Kate Together at the Queen's Funeral

Prince William, Princess Kate, Prince Harry, and Duchess Meghan came together today to mourn the late Queen Elizabeth II.

Today, the foursome arrived at Westminster Abbey in London for the late monarch's state funeral. They stood next to each other as members of the royal family lined up for a procession down the aisle of the abbey. Ahead of them were King Charles III and Queen Camilla, as well as the rest of the queen's children, Princess Anne, Prince Andrew, and Prince Edward with his wife, Sophie, Countess of Wessex.

Kate and Meghan Markle both wore all-black mourning looks, with Kate in a dress and veiled hat and Meghan in a cape dress and wide-brimmed hat. William wore his military uniform while Harry wore a suit with decorations.

The funeral service today began at 11 a.m. U.K. time, and was attended by the queen's surviving family members, as well as royals from other countries and world leaders.

Following the funeral, the late monarch will be laid to rest at St. George's Chapel at Windsor Castle, the same place her husband of more than 70 years, Prince Philip, was buried following his death last year.

Ahead of today's service, King Charles expressed his gratitude to those who have sent their condolences for the death of the queen.

"As we all prepare to say our last farewell, I wanted simply to take this opportunity to say thank you to all those countless people who have been such a support and comfort to my Family and myself in this time of grief," he wrote in a message released by Buckingham Palace.

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