Question: Who's sister began receiving media attention with her appearance as the maid of honour at her sister's wedding to Prince William, who's mother s a former flight attendant turned businesswoman ?
Sentence (from "Pippa Middleton"): Philippa Charlotte Middleton ( ; born 6 September 1983) is an English socialite, author, columnist, and the younger sister of Catherine, Duchess of Cambridge.
Relevant evidence: Yes