Maria Teresa Cybo-Malaspina was sovereign Duchess of Massa and Princess of Carrara from 1731 until her death in 1790. From 1780, she also formally held the title of Duchess consort of Modena and Reggio as the wife Ercole III d'Este. Wikipedia
Born: June 29, 1725, Novellara, Italy
Died: December 29, 1790 (age 65 years), Reggio Emilia, Italy
Children: Maria Beatrice d'Este, Duchess of Massa
Parents: Ricciarda Gonzaga and Alderano I Cybo-Malaspina
Great grandchildren: Maria Beatrice of Savoy, Francis V, Duke of Modena, Maria Teresa of Savoy, and more
Great-grandparents: Ricciarda Cybo Malaspina, Alberico II Cybo-Malaspina, Alfonso II Gonzaga, and more