William began the day’s proceedings by meeting the Sultan at his residence, acting on behalf of his father, before escorting him to Windsor.
The 44-year-old heir to the throne and Catherine, also 44, then gathered alongside Charles, 77, and Camilla, 79, at the Royal Dais on Datchet Road for the official ceremonial reception.
Royal gun salutes rang out from Windsor’s Home Park to mark the occasion, with corresponding volleys fired at the Tower of London, roughly 40 miles to the east.
The Princess of Wales has long embraced the practice of diplomatic dressing, weaving colours and symbolic details into her wardrobe choices as a mark of respect to visiting dignitaries. Her Alexander McQueen coat is by the same designer responsible for her celebrated 2011 wedding gown.