Sophia Maria Luisa Friedrike Albertina (Stockholm, 8 October/18 October 1753 - Stockholm, 17 March 1829) was a Swedish royal Princess, daughter of king Adolf Frederick of Sweden and Louisa Ulrika of Prussia. She thus was a princess of Sweden and a princess of Holstein-Gottorp. She was also a Protestant Princess-Abbess of Quedlinburg Abbey and a vassal monarch of the German-Roman Empire.\\She was given her two names as namesake of her two grandmothers: Sophia Dorothea, Queen in Prussia (daughter of George I of Great Britain) and Luisa Albertina Fredrike, Princess of Holstein-Gottorp-Eutin.\\