Members of the delegation of the Grand Duchy of Oldenburg: The Crowned Grand Duke Friedrich Augustus (sits); chamberlain baron von Botmer, adjutant of the suite Prince V.A. Dolgorukov, orderly lieutenant von Kl More
Duke Peter Aleksandrovich of Oldenburg and his wife Olga Vladimirovna Serebryakova. Герцог Петр Александрович Ольденбургский и его жена Ольга Владимировна Серебрякова.