Princess Diana was well known for her love affair with fashion designer Catherine Walker's impeccably tailored designs. The British couturier was behind some of Diana's most iconic looks, and decades later, Kate Middleton would go on to favor the label, too. But Prince William once sported a Catherine Walker design for an important moment in his own life—his first time attending an Easter church service with the Royal Family.
The future king was just four years old when he joined parents Princess Diana and Prince Charles and the rest of the Royal Family for church at Windsor Castle's St. George's Chapel on Easter Sunday 1987. Diana didn't choose just any design for her son's big debut, dressing him in a pale blue Catherine Walker coat that was an adorable miniature version of her own Easter outfit.
