One year after his own wedding at Windsor Castle, Prince Harry returned Saturday for the nuptials of Lady Gabriella Windsor and Thomas Kingston.
The Duke of Sussex, who arrived without wife Duchess Meghan and newborn son Archie, looked sharp in a morning suit with striped pants for the ceremony at St George's Chapel.
Lady Gabriella is the daughter of Prince Michael of Kent, Queen Elizabeth II's cousin. This makes Gabriella a distant cousin to Harry and the 52nd in line for the British royal throne.
Harry wasn't the only new parent in attendance. Duchess Kate's sister, Pippa Middleton, was also there with husband James Matthews. They welcomed their first child, a baby boy, in October.
The queen also attended with husband Prince Phillip. She arrived in a bright pink coat and matching hat.
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This article originally appeared on USA TODAY: Prince Harry, Pippa Middleton attend Lady Gabriella Windsor's wedding at Windsor Castle