In the 2017 BBC documentary "Diana, 7 Days," William discussed the matter, explaining that it was not an "easy decision" but one the family made together.
"We were overwhelmed by how many people turned out, it was just incredible. There was that balance between duty and family and that's what we had to do," he said.
Harry added: "I think it was a group decision. But before I knew it, I found myself with a suit on with a black tie and a white shirt, I think, and I was part of it. Genuinely, I don't have an opinion on whether that was right or wrong. I am glad I was part of it. Looking back on it now, I am very glad I was part of it."