Costume designer Helen Rose created the wedding dress worn by which actress at her wedding in 1956?

Helen Rose (February 2, 1904 – November 9, 1985) was an American costume designer and clothing designer who spent the bulk of her career with Metro-Goldwyn-Mayer (MGM).

She attended the Chicago Academy of Fine Arts and then designed nightclub and stage costumes for various acts. She moved to Los Angeles in 1929, where she designed outfits for Fanchon and Marco and later the Ice Follies. In the early 1940s, she spent two years working for 20th Century Fox, where she designed wardrobes for musical selections. In 1943, MGM hired her in the wake of Adrian's departure, and by the late 1940s, Rose was promoted to chief designer at the studio.

In 1956, Rose designed the wedding dress worn by Grace Kelly for her marriage to Prince Rainier of Monaco.

Grace Patricia Kelly (November 12, 1929 – September 14, 1982) was an American actress who, after starring in several significant films in the early to mid-1950s, became Princess of Monaco by marrying Prince Rainier III.