Ceremonial court dress belonging to Grand Duchess Maria Fyodorovna, Russia (?), 1860s. Silk, tulle, metallic thread, artificial flowers. State Hermitage Museum (link: http://www.hermitage.guide/costume/costume1.html). It is possible that Maria Fyodorovna donned the dress for her engagement to Tsarevich Alexander Alexandrovich of Russia (see detail from Mihály Zichy´s painting of the event, via Imperial Russia's Tumblr). CLICK FOR VERY LARGE IMAGES.