Duchess Marie Louise of Mecklenburg-Schwerin was the Duchess of Saxe-Altenburg. She was the daughter of Frederick Louis, Hereditary Grand Duke of Mecklenburg-Schwerin, and Grand Duchess Elena Pavlovna
Marie Louise in 1862
Portrait of Marie Louise by Joseph Karl Stieler, 1851
Elena Pavlovna was a grand duchess of Russia as the daughter of Paul I, the Russian emperor, and later became the Hereditary Princess of Mecklenburg-Schwerin as the wife of the Hereditary Prince Frede
Portrait by Josef Grassi, 1802
Elena Pavlovna painted by Jean-Louis Vollie, 1792, around the age of seven
Elena Pavlovna (right, in pink) with her elder sister Alexandra Pavlovna (left, in blue) painted by Élisabeth Vigée Le Brun, c. 1795–1797
Portrait by Friedrich Erhard Wagener