Pippa Middleton told NBC News she had no idea how big her sister Kate's 2011 marriage to Prince William would be, since she saw it as just another family wedding.
"That stopped me in my tracks, that she looked at this as, 'Oh, my sister is getting married,' not that, 'Oh, I'm the maid of honor in the royal wedding,'" said NBC's Matt Lauer, who conducted the interview.
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