Princess Elizabeth Bridesmaid to Her Lady-in-Waiting - The bridal attendants at St. Margaret's this afternoon (Wednesday). Princess Elizabeth is near, right, and beside her is the Hon. Rosemary Elphinstone, sister of the Bridegroom. Princess Elizabeth, in a long-skirted dress of cream, with a short white fur *****, was one of the bridesmaids at St. Margaret's, Westminster, this afternoon (Wednesday) when her lady-in-waiting, the Hon. Mrs. Vicary Gibbs, was married to Capt. the Hon Andrew Elphinstone, a nephew of the Queen. Their Majesties the King and Queen, Her Majesty Queen Mary and Princess Margaret attended the wedding. May 29, 1946.