Anna Miełżyńska was the great-grandmother of which Queen consort of the Polish-Lithuanian Commonwealth?
Anna Miełżyńska Anna Miełżyńska (about 1600-after 1640) of the Nowina clan was a Polish noble lady, the wife of Remigian Zaleski, Castellan of Łęczyca and the mother of Teresa Zaleska, who was the grandmother of Catherine Opalińska, the Queen consort of King Stanislaus Leszczynski of Poland. Her father was Łukasz Miełżyński (about 1560-1628), who was the Castellan of Gniezno (he is referred in some sources as Count). Her mother was Elżbieta Czacka (about 1575-after 1612).
Princess Christine Louise of Oettingen-Oettingen Christine Louise of Oettingen-Oettingen (20 March 1671 in Oettingen – 3 September 1747 in Blankenberg) was Duchess of Brunswick-Lüneburg. She was the maternal grandmother of Holy Roman Empress Maria Theresa, Queen Elisabeth Christine of Prussia, Queen Juliane Marie of Denmark and Norway and Tsar Peter II of Russia; the maternal great-grandmother of Queen Marie Antoinette of France, Tsar Ivan VI of Russia and Francis, Duke of Saxe-Coburg-Saalfeld; the maternal great-great-grandmother of King Leopold I of Belgium and the maternal great-great-great-grandmother of Queen Victoria of the United Kingdom.