From Miss Mertens' photostream on flickr.
Grand Duchess Hilda's dress has a straight off-shoulder neckline and a semicircular bertha trimmed with thin lace ruffles in this photo.
Keywords: Grand Duchess Hilda of Baden, Nassau family, Baden family, Grand Duchess, German, bouffant coiffure, tiara, off shoulder straight neckline, modesty piece, bertha, lace, quarter length tight sleeves, choker necklace, necklace, brooch