The Duke and Duchess of Cambridge were joined by Prince Harry on Wednesday for a service in honour of the victims caught up in the terrorist attack in London last month.
The royal couple were joined by William's brother Prince Harry at the Service of Hope at Westminster Abbey - just minutes from where the incident unfolded - in the English capital as they supported the families of those who were injured or killed when Khalid Masood, who has since been shot dead, went on a murderous rampage in the city.
The 34-year-old royal - who has three-year-old son George and 23-month-old daughter Charlotte with his wife Catherine - laid a wreath of flowers at the Innocent Victims memorial outside the church as the trio arrived ahead of the service, according to the Express newspaper.
Upon entering the Abbey, the royals were greeted by London Mayor Sadiq Khan and Metropolitan Police Acting Commissioner Craig Mackey before making their way down the aisle and sitting on the front row with the emergency services.
The Dean of Westminster, the Very Reverend John Hall, lead the service before William gave a reading from the Bible before Dr Hall gave a speech.
He told the congregation: "We are all affected by the attack a fortnight ago on Westminster Bridge and at the gates of the Palace of Westminster, and we are all left bewildered and disturbed. But our sense of loss and diminishment is paled by comparison with that of the families of those who died: AyshaFrade, Kurt Cochran and Leslie Rhodes on the bridge, and Police Constable Keith Palmer on duty at the gates of Parliament, and all those who were injured."