It was a four-mile march witnessed by billions, a cortege from Kensington Palace to Westminster Abbey, bearing the coffin of Princess Diana. Now, decades later, we look back at the funeral that brought the world together for a day of grieving. We reveal the stories behind the solemn spectacle, from the royal florist devastated by Prince Harry’s card to “Mummy” to the pallbearers’ battle just to stay on their feet.