Task: Explanation
Input (English): Philippa Charlotte Middleton ( ; born 6 September 1983) is an English socialite, author, columnist, and the younger sister of Catherine, Duchess of Cambridge. Middleton began receiving media attention with her appearance as the maid of honour at her sister's wedding to Prince William. After marrying James Matthews in 2017, she will be styled Lady Glen Affric should he inherit his father's title. Question: Who was maid of honour at her sister, Duchess of Cambridge, wedding to Prince William? Answer: Pippa Middleton
Output (English):  Middleton began receiving media attention with her appearance as the maid of honour at her sisters wedding to Prince William.