The wonderful court dress worn by Princess Dagmar of Denmark, known after her conversion to Orthodox Church as Maria Fyodorovna, at the occassion of her engagement to Tsesarevich Alexander Alexandrovich of Russia, as seen in the detail of Mihály Zichy´s painting of the event.
Ceremonial court dress of Empress Maria Fyodorovna from lilac pink velvet and tulle with silver needlework 1870-1880 Russia, St. Petersburg Velvet, silk, tulle, lace, silver threads, wire, embroidery, plaiting. From Hermitage Museum site.
Ceremonial court dress belonging to Empress Alexandra Fyodorovna. Made by the workshop of O. Bulbenkova (?), St. Petersburg, Russia. Late 19th to early 20th centuries. Velvet, satin and gilded metal thread. State Hermitage Museum (links: https://www.hermitagemuseum.org/wps/portal/hermitage/digital-collection/08.+Applied+Arts/1263422/?lng=en, http://www.hermitageline.ru/ru/blog/view/bal). Other photos are via Ghosts of Imperial Russia's Tumblr. CLICK FOR VERY LARGE, HI-RES IMAGES.