The Duchess of Cambridge 's sister attended the party at Belgraves Hotel . She wore a Tabitha Webb dress and Hoss Intropia clutch . The 31-year-old is a columnist for main magazine , TOWIE . The Spectator 's Lucy Mecklenburgh and royal chum Guy Pelly also attended .
The Duchess of Cambridge 's sister attended the party at Belgraves Hotel . She wore a Tabitha Webb dress and Hoss Intropia clutch . The 31-year-old is a columnist for main magazine , The Spectator . TOWIE 's Lucy Mecklenburgh and royal chum Guy Pelly also attended .